Tag: How to Stratify Milkweed Seeds for Spring Planting Thank You to Everyone Who Participated in This Year’s Cape Ann Milkweed Project!!! I’m using that to unlock the dormancy of my bog myrtle seeds. Congrats Erica…thanks for sharing and good luck with your new seedlings! Moisten vermiculite with distilled water, the exact quantity required varies with different media, moist but not dripping is best. Hi Helen, make sure the plant is getting plenty of light so it comes out of dormancy. The easiest way to germinate milkweed seeds is to plant the seeds in the fall. I’ll probably never bother with any other techniques again. Thanks so much for this post! Common recommendations is to stratify for 30-60 days. The gentleman 2 posts above yours. Place the seeds in a container and cover with 1” non- chlorinated water. I collected the seeds from my swamp milkweed to give away to local gardeners/neighbors (to help monarchs). After 24 hours, pour seeds into strainer and rinse with distilled water. February 2020 Tony, thanks so much. Hi Tony , I started 12 Milk Jugs with several different kinds of Milkweed and I check today and they all are up at least a inch already . Thanks for the great research!! March 2018. Put in a warm spot ( I kept mine in microwave with door ajar/ light on -about 80 degrees). If you are doing an outdoor stratification, you can skip this step. If starting seeds without cold stratification, plant in the fall for germination the following spring. I dig a hole, get an empty water gallon (jug), cut the bottom out of the jug and sink it into the ground. For the school milkweed seeds, that sounds like a good plan! Unfortunately, you mentioned that the fluff should be thrown away afterward. November 2019 The American Meadows Blog: How to Germinate and Grow Milkweed Seed. It’s easy to start milkweed seeds in milk jug greenhouses and let Mother Nature cold stratify and germinate them for you. Will make 2018 Milkweed seeds can be sown outdoors after the danger of frost has passed and the seedlings have grown around 1-5 inches high. I was going to do a comparison of germination rates between seeds that had wet cold stratification to those that had dry cold stratification, but I don’t know when my paper towel dried out. I don’t know how true this is, but I have read that you should occasionally check on the seeds because they could start germinating in as little as three weeks time using the cold moist stratification method? What you need. Does it make any difference what temp it is held at ? Thanks for reading and best of luck with your milkweed! I have used dry stratification in the past. Soaking the seeds for 24 hours won’t hurt common seeds, and might even have a positive effect on germination speed and percentage. So last year I got inspired to create a registered Monarch way station here. Likewise, every 10-degree F. (-12 C.) increase in temperature can also cost seeds half their storage life. Any info on these topics would be appreciated. We get asked a lot about how you cold stratify milkweed seeds without waiting until winter. Is that a good time frame, in your experience? March 2019 You can sow milkweed seeds by scattering them on the soil surface 1/4-1/2 inch apart, and then cover them with about 1/4 inch of additional soil. Am growing ~ 30 types of milkweed this year. Can we sow directly into the soil now and/or plant in seed trays without cold stratifying? These are the first simple steps for milkweed cold stratification…won’t you plant along? I have always read on seed packets wait until all danger of frost has passed before sowing. I will try the tropical ones if they don't survive here. I spray it on seedlings and their soil to kill fungus gnat larvae. No need for seed heating mats or indoor lights. Should I store those seeds in the fridge? Obviously, not what I should have done, according to what I'm reading now. answer. The curassavica will have had almost 10 weeks indoors, before outdoor planting past our frost free date. Gwendolyn, on behalf of our community, I would like to thank you for sharing this surprisingly simple way of starting milkweed seeds! I have 8 weeks until avg last killing frost here in NW Arkansas. Should I leave them in the freezer and plant them in the spring? Scragly but alive. Plan to tag them in 2019. I don’t drink coffee, so I used paper towel instead of a coffee filter. Lightly apply pressure to seeds to break or nick the outer coating. This will be our first year growing common milkweed from seed. Once you have plants, you can start some this fall or next spring. If any one has any extra Milkweeds seeds could you please send to me, I’d appreciate it! Asclepias incarnata stratifying in a cold/moist chamber at the Nebraska Statewide Arboretum. Is it recommended to sow germinated seed directly into my garden? No, the seeds are not necessarily supposed to sprout in the fridge. East/West windows, water from the old kitchen sink that doubles for a nice potting center, and everything seems to grow well up there – including potatoes all winter long. Hi John, freezing temps will reduce the germination rate but some seeds will survive. Thanks for your questions! Thank you so much for all your words of encouragement to those of us new to this & I even see here in Missouri people/cities are taking up the monarch challenges–I just don’t live in these cities. The glass of water works like a charm for butterfly weed seeds! In fact, many California plants do not need a frost to trigger germination, but it is on a species by species basis. There are many more than I can use so if anybody wants some, let me know directly or on CHAT. I’ve never had a problem  starting common, swamp, or butterfly weed seeds in this manner, but have only done this on a small scale so I’m uncertain how effective this is compared to a cold moist stratification. We have A. syriaca, A. tuberosa, A. amplexicaulis and A. quadrifolia in the area. Exposing the seeds to cold temperatures for a short time simulates the natural cycle of dormancy. April 2018 Place your seeds in a small container of water (room temperature is … April 2019 Hi Stephen, This happens naturally outdoors in a cold climate: the plant drops its seeds in fall and they sprout in spring. so might as well try again. How to Stratify your Seeds Soaking (or imbibing) your seeds gets them ready for stratification. Best of luck! Butterfly weed is native to the prairies of the Midwestern United States. I didn’t take the wax covering off of these. I will update this post when i have more info…. e.g. I am also planning on potting them up when there are about 4 sets of real leaves. Do I assume this has been a failure or is there anything I can do to retrieve the situation? Simply sprinkle seeds on well-tilled soil and pat them down,... Spring seed planting. Once cold stratified, sow the seed 1/16” deep, tap the soil and lightly mulch the seed bed. Once the new stems grow to 4″ you can take your first cuttings. I keep ours in a cupboard. I also have a small cfl on during the day from 6:30 am to 9:30 . I’ve always prepared milkweed seeds by using the artificial stratification method ( click here for instructions ), however, was intrigued by this unique method. I put a bunch of swamp milkweed seeds in a ziplock bag without a wet towel and stuck in my fridge probably 3-4 months ago. How to Cold Stratify and Grow Milkweed Seeds. Larger seeds tend to do well in a bit of moistened peat or sand, placed into a plastic bag. The trick is … Anyway will this be ok for cold stratification of most perennial seeds including common milkweed? I didn’t use a heated mat. I started them in February hoping they would be ready for our garden club plant sale in May 13th,I’m so excited . If it dried out quickly, I’m probably doing a seed germination comparison of dry cold stratification to dry cold stratification, rats…. Do monarchs fly thru here on their migration? The easiest way to grow milkweed is to start with plants instead of seeds, tucking them into the ground after the danger of frost has passed. If you live in a climate with a warmer winter, you can plant your seeds in either the spring or the fall. If you would like to read more on growing milkweed indoors check out my other blog: https://www.saveourmonarchs.org/blog/5-steps-to-planting-milkweed-seeds, Does putting dry seeds in the freezer for a week or so help at all? Royal Palm Beach FL 33411. Your time frame is fine for starting indoors. WET Cold Stratification VS DRY Cold Stratification 1. How do I find him? I was preparing some seeds for cold moist strat when I had a thought to let the fridge handle the cold part and let mother nature handle the moist part this spring. I was curious to see how seeds from a warm weather variety would be affected by cold treatment. I could try to explain the how to do this but I expect to be dealing with a lot of little kids. Found out, after the seeds arrived, that I really needed to stratify the perennial varieties, but it was already March, so I just planted 4 to a pot hoping some would germinate. Hi Michelle, we keep seeds about 3-4 years but I can’t give you an exact answer for the germination rates. Around how tall should they be before I transplant them outside? Have been reading and wonder where you get seed for the purple milkweed. February 2019 Just wondering if you have tried it or if you have heard of anyone else trying it with those varieties? I do this all the time with wheatgrass seeds that I grow for my cat (and me, when I’m feeling ambitious to juice! That’s almost double what we have. Is it too hot in July to plant the seeds? You can track the monarch migrations and see real-time maps of their migration at https://maps.journeynorth.org/maps Thanks! Poor thing. I just can’t wait for spring!!!! Milkweed seed can be planted directly in soil, or started indoors. If you’ve been thinking about planting fall milkweed this season, November is the best time for most of us to complete this simple garden task. I hope that helped! The sturdier the seedling, the better! So, if the seeds are “presprouted”, how do you plant them? ( Tropical doesn't need stratification ) Once you have mature plants, you can overwinter a couple indoors and take cuttings to start new plants, which grow faster than seedlings. Most milkweed species planted in North America need a cold moist stratification to encourage spring germination. Those of us with cold winters need to either sow our seeds in the fall or cold stratify them for spring planting. Stratifying the Seeds. Everybody Gardens editor Doug Oster shows three different ways to prepare the seeds for planting. It's critical to give milkweed seeds a cold treatment called stratification. Hi Michelle, I would probably soak them in water for 24 hours before planting in peat pots to soften the seed coat and increase germination rate/speed…good luck! Reply. I move plants outside after the final avg frost date. I released 4 Monarchs yesterday and have 2 more that will be released today and 2 more chrysalises that should eclose maybe today. July 2018 I just put some A. Tuberosa andLupine seeds in the fridge for cold moist stratification. Feb 17, 2020 - Th definition of cold moist stratification is to treat seeds by simulating the real-word conditions they receive outdoors inside...a step by step tutorial. This will break the seeds ‘dormancy’ allowing it to germinate. Do I have to stratify Milkweed seeds. Cover the seeds with the already-moist soil. In horticulture, stratification is a process of treating seeds to simulate natural conditions that the seeds must experience before germination can occur. I haven’t given up on the other 4 yet. Finally my seeds have had their 30 days of wet cold stratification and they came out of the refrigerator this morning. If you still have extra I would love some. This winter has been too long for me this year. Hi Vickie, you can also try using rooting hormone to plant tropical milkweed cuttings directly in soil next spring. Can I just put the seeds out on the snow in February? ​. Place sand/seed mixture in a ziploc bag and seal. Stop when you see the lighter inner part of the seed. I pour them out on soil when I start seeing roots, then sprinkle a little soil over them. Once I have eggs or caterpillars, I will pull the cups out and replace them with fresh seedlings. Thanks for this information. Soak milkweed seeds in water for several hours or overnight; tap water is okay. Hello, I just pulled out a bag of milkweed pods (uncertain of the type) my son and I collected in Bethesda, MD last fall. I am planning a butterfly garden. Store the mixture in the refrigerator (33–38°F) for the recommended time on your seed packet. I do this with our common/swamp every year. Put them in a safe place inside your refrigerator for about a month. Here’s more info on tropical milkweed: Is Tropical Milkweed Killing Monarch Butterflies? I usually wait for the plant to be at least 5-6 inches tall. Is it too late to cold stratify and plant the seeds? Thanks for sharing this technique…. ( Providing the weather is warm). I just bought a large assortment of milkweed seeds and was wondering about the larval gnat thing…. Swamp milkweed – Swamp milkweed can tolerate extra water, but does well in average soil. The tropical variety grew and bloomed beautifully, and I saw 4x the monarchs and caterpillars I’d seen in prior years. Change the water ever 12 hours for 7 days. Hi Liz, if the seeds are viable, this method definitely works for tuberosa…good luck! WOW, that is great!! Here at Joyful Butterfly, our preferred medium is a coarse, washed, all-purpose sand. I use a slightly different method for germination as deer and rabbit herds have decimated the milkweeds in my neck of the woods! Another option is to distribute them to folks in your community or set up a 'seed swap' event. When you are ready to germinate them, soak the seeds for 24 – 48 hours in warm water before sowing. I then fill the sunken jug w/potting/peat sand mix and sow the seeds. You want to start strengthening the stem before it becomes a potential issue. I have had a problem starting purple seeds using dry cold stratification in the past. Good luck! Tracey on September 30, 2019 at 4:43 pm To stratify, first obtain a substrate. If those seeds can survive a Minnesota winter, they can survive being planted in early spring. Cold moist stratification worked well using a wet coffee filter sealed inside a plastic baggie. The most successful means of milkweed vernalization is through stratification. Pretty good. Butterfly weed is a must-have plant for green thumbs looking to coax its namesake beautiful winged insects into their garden. Oh well, I guess I’m helping everyone else out by showing them what not to do…. I am refining my seedling technique, doing cold moist stratification of the perennials right now, but not the tropical, which has already sprouted. Milkweed seed can be planted directly in soil, or started indoors. I just got my dormant tropical milkweed and want it to grow fast what will Make it catch up so that hopefully I can take some cuttings and make even more plants? I have not cold stratified in the freezer but know that it can be done. Great website and great tips on cold stratification for asclepias!! I had 100% germination with Silene regia (Royal Catchfly)! For Butterfly Milkweed (Asclepias tuberosa) Prairie Moon Nursery recommends 30 days of cold stratification. http://savethemonarchbutterfly.ca/Growing-Milkweed-Seeds-Year-Around.pdf, I would like to contact Dick Seng to get seed pods. Kitty Connolly on April 7, 2019 at 7:29 am No stratification is necessary. Asclepias Tuberosa (Hello Yellow Butterfly Weed). I collected seed pods, I believe them to be Common Milkweed, last fall and kept them in my gazebo over the winter. Best milkweed because of flowers and it can sustain a large number of cats. How to Germinate Milkweed Seeds. In continuous growing regions like Florida and southern California, there are potential issues if the plants are not cutback periodically, but this is not an issue in other regions….yet this misinformation still spreads like wildfire. I just planted mine on Monday and the filters were still fully wet when I removed them. Plant seed in fall in a sunny location. Pour the water into the plate. Add your desired seed amount to the sand. Winter-sow, or Cold-Moist Stratify the Seeds … They will sprout! I am a “newbie” at raising Monarch butterflies – this is only my second season. The seeds won’t germinate while they are inside the refrigerator. currently have some in freezer. Starting milkweed from seed is tricky. Just a note about growing A. curassavica (tropical milkweed). Hi Marina, I’ve never stored seeds dry in the freezer, so I’m not sure what kind of germination you can expect. Most of my Milkweed has been Common Milkweed. Put it in refrigerator dry, and did nothing else. Good luck! It is about one to two feet tall, with glossy, lanceolate leaves that are arranged spirally up the length of the stem. fungus gnat eggs/larvae are in soil so there would be no difference between using wild and prepackaged seeds. Hi David, I’m leaving my milkweed seeds in the refrigerator for just over a month…I hope it’s too cold for any of them to germinate before I take them out. Hi Charlene, I cold stratified all the seeds for about a month. December 2018 Milkweed seeds in nature undergo a process called stratification where their outer shell is cracked by the cold winter weather, allowing the seed to sprout in Spring. Place seeds on the wet surface and fold over the paper towel. We even get tropical milkweed seeding up north in Minnesota. I am gathering common milk weed seeds now to put in little packets to give out. and we will distribute them in our School Pollinator Program. Hi Sandy, just what’s posted. I only tried cold moist stratification on purple and 75% of the seeds (3 didn’t sprout) have germinated. After the required amount of time (see plant description), your seeds will be ready for transfer to their new home–in the soil of a container or garden bed. We washed them in detergent and then rinsed then to death then put them in a chemex filter and put them in cold storage for 3 months. Monarch Butterfly Garden- Bring Home the Butterflies, Butterfly Garden Ideas and Gardening Tips to Attract Monarchs, Swallowtails, Hummingbirds, and other Precious Pollinators. Do you see any flaws with this plan? 10418 Carmen Lane October 2019 In order to germinate a large percentage of Milkweed Seeds, you need to do the following key steps. Good luck with your seeds! If the leaves start turning red, they are getting too much light. Thanks! Hi Arthur, it definitely works with other species too, but I don’t have a complete list. Thanks for your comment! You can also donate viable seeds to I grew up in MN with the monarchs, but now live in desert AZ. If you want to give them some moisture you could always put them in winter sowing containers and place them outdoors: There is a link at the bottom of my milkweed resources page for buying seeds in Canada, if you scroll to the bottom: I tried the “water stratification” with some tropical milkweed seeds… out of 10 seeds 6 sprouted within a week. I had so little luck with my outdoor stratified butterfly weed (one lone seedling out of 30 planted) that I’m going to try the cold, moist stratification in the fridge, too. How to Stratify seeds. Continue reading to learn more about this cold treatment for seeds and which seeds require cold treatment or stratification. To stratify seeds, start by placing them in some moistened peat, sand, or paper towels in a closed container or sealed plastic bag. Will be prepared next time one passes thru. Hi Alan, Take a look every few days to make sure there’s still water for the seeds, adding more if needed. 3. The seeds seemed to germinate fine without one. Place the milkweed seeds in the coffee filter. I did not put my seeds into a plastic baggie, I put them into a sealed container and then into another container, but I guess enough air filtered in to dry out my paper towel. She was also able to do this successfully with tropical milkweed seeds. 3a. Hi Yvonne, tropical milkweed is an invaluable milkweed species for monarchs throughout the US and Canada, and there are monarchs using it now in their overwinter grounds in Mexico. When we have started native seeds indoors, I’ve simply put the seeds in a plastic bag, then placed them inside a refrigerator for about a month. Also, what would you say is the ideal age for a perennial or annual seedling that’s been started indoors to be moved outside? I live in Nebraska where the first average frost happens around October 5th. Wish me luck. Place your folded filter inside a plastic sandwich bag and seal the bag shut. Usually I have problems with damping off starting from seed but must have collected 100’s of seeds from the pods in the last few weeks (with more on the way!) You can plant them in seed trays, peat pots, small pots or any other container that allows for water drainage. We’ll see how my video skills improve over the summer…I’ve got a ways to go, but I’m looking forward to trying some new things . September 2018 Question about just putting all my perennial seeds in the garage (suspended in a small hammock from the ceiling, all seeds in original or homemade paper envelopes and all seeds then in rubbermaid sealed container – mice!). Slowly add water until you can form a ball with the sand/water mixture. Well in this video we show you how! It is recommended to water from the bottom up by adding a half-inch of water to the bottom of a tray and placing the pots inside this tray. Hi Chris, that’s more of a cold “dry” stratification which is what I have done in the past. After the seeds have soaked, put them in a sealed plastic bag filled with moist stratification mix (and by “moist” … It’s too warm for the ground to be frozen but too cold for seeds to sprout before winter sets in. This is a natural way to cold-treat or stratify the seeds. Naturally, each one asked the same question: How do I germinate these? I was able to get 7 seeds to sprout earlier by soaking the seeds in warm water before planting. You may press in gently but they need light to germinate so please don’t bury them! In Minnesota, cold moist stratification increases the speed of milkweed seed germination and also the germination rate. Sharpsburg, Ga 30277, Hi all! Facebook Twitter Reddit StumbleUpon. Cold Moist Stratification (CMS) describes the process that seeds naturally progress through. ​After 30-60 days, it’s time to plant your Milkweed seeds. Hi Alice, congrats on your butterfly garden success and helping start your local community butterfly garden. Monarch Butterflies Nectaring at Pink New Enlgand Aster, Gloucester. Moisten a paper towel and spread the seeds out on it. The other varieties will bloom this year, I hope! If you want winter to take care of this for you, you also have the option to: water stratification works especially well for Asclepias tuberosa, and will work to some extent for most varieties…, Hi. Hi Lexi, I don’t put our seeds in the refrigerator until I want to stratify them. Milkweed in the Hole! Store towel inside a plastic bag. Soil seems moist so haven’t watered. Seeds, Butterflies. Gather your supplies Thanks for all the info. I’ve also gotten reports from others who have tried this successfully…good luck! Empty plastic milk jugs (without caps) or any other container that lets light in. Thank you! it kills pathogens, puts more oxygen in the soil, and wipes out fungus gnat eggs. Many seed species have an embryonic dormancy phase, and generally will not sprout until this dormancy is broken.. You can read more here: https://www.saveourmonarchs.org/blog/5-steps-to-planting-milkweed-seeds Milkweeds, various species within the genus Asclepias, are herbaceous perennials whose hardiness and other … Hello Irene, it’s not going to germinate inside the refrigerator…I would take them out and plant them. Hi. Right now we have our seeds chilling in the refrigerator (dry stratification), but I will also give the cold moist stratification a try too. Will Asclepias Curassavica seeds germinate after being frozen? And I have 3 more chrysalises that aren’t ready. Just checked and didn’t see anything yet. Number one, my inability to follow simple directions on how to stratify seeds, and number two, mama monarchs willingness to lay eggs in my backyard. I’ve consulted it numerous times when researching something about my monarchs. How to Germinate Milkweed Seeds – the Key Steps: In order to germinate a large percentage of Milkweed Seeds, you need to do the following key steps. Thanks! We sell milkweed seeds in bulk here: https://www.saveourmonarchs.org/store/c12/Bulk_Seeds.html. March 2020 Hi Lana, are the seeds in your refrigerator or did you move them outside? Make sure your milkweed has enough light to grow whether that be under an artificial grow light or near a sunny window. You can absolutely just stratify them the "all natural" way if you have the space. And if they are fresh seeds from last fall, the germination rate should be high, assuming the seeds are fully mature…, Love the video, nice addition to your posts, thanks. Milkweed seeds require stratification-- cold treatment -- for three weeks to three months for optimal germination. Box #390135 I have both common and swamp seeds in the frig and every Saturday, I am going to pull out 10 to 15 seeds and plant them in 3 1/2 inch cups. Thank you for your questions! Seeds require cold moist stratification. How to Grow Milkweed Plants. Hi Tony, Thank you for all of the valuable information you provide to so many of us! Indoors, you can mimic this by placing the seeds in the fridge for several weeks before sowing them. I have a photo here: Do you have any additional information or comments about Gwendolyn’s method of seed germination in water? Would I be ok to go ahead and plant them in peat pots right now for eventual planting outside once the seedlings are big enough? Or will the birds get them? This is new to me. I will try the water method and keep my fingers crossed! If it isn't warm enough yet in your region, you can start them indoors in a sunny window or under a grow light. Then plant and keep moist until they start taking root. I did have a butterfly eclose yesterday that had OE which I isolated. Have a patch of yard I’d like to make a butterfly garden. After this period, bring the plants indoors to spur germination. I am very excited about raising the Monarchs. You can also place your seeds in mesh bags and put those bags in the medium. Seeds require cold moist stratification. April 2020 Do you still have some seeds ? 5. It speeds up germination…. My method for germinating milkweed seeds works with pretty much any type of Milkweed seed. I have not tried the water stratification yet…that’s on the list for late winter/ early spring. Once the sun comes out and the ground is warm in the spring, the seeds will germinate on their own. The jug helps to keep seeds moist and when the seedlings germinate it protects them from marauders. Wow…30 types? Soak your filters Hello! Hi Rita, I’m not sure what you’re asking? Stratification is the process of mimicking the natural over-wintering process by exposing the seeds to cool, moist conditions. However, my gardener is now suggesting we use your methods to spread our milkweed. Hi Terry, yes…it will work with both. Last week I soaked them in water for 24 hours, then planted them in a small seed starting greenhouse indoors. Note: Do not pack the mulch down as it is important to have a bit of air flow to deter mold and fungus from growing. Monarchs are in dire need of our help and I feel it is best to stay away from growing A. Curassavica to keep Monarchs healthy. The most dependable way to stratify seeds is in a moist medium, wrapped in plastic in the refrigerator. I really would appreciate it so much. December 2019 Cover your seeds with your medium. This variety is better for smaller gardens and raised beds because it is a perennial and will grow in the same spot each year. I would think this should work with many types of plants, although I don’t know about this cold stratification for native plants to us northerners…. Filed Under: Butterfly Garden Ideas, Milkweed Garden Ideas, Milkweed Propagation, Minnesota Garden Ideas, Plant Propagation, Starting A Garden Tagged With: cold stratification, milkweed seeds, stratify milkweed seeds, Honeybees can have a hard time with milkweed, sometimes getting their legs caught in the flowers: http://www.ourhabitatgarden.org/creatures/milkweed-varieties.html, Hi Larry, I have seen flies and small white butterflies get stuck in common milkweed blooms, but never honey bees, and we see them often in our garden…. you are too kind Ruth 😉 I am really diving into video this season, so the videos will improve over time. If you’re not sure about your seeds, try starting a few indoors to test them. January 2020 I just got seeds but if a stratify them it will be July. Thanks for your help. Place a 1/4 cup of sand (or more) in a mixing bowl. Hi Brian, it’s hard to imagine the seeds would germinate if the temp inside your refrigerator is in the mid-thirties. They would not start sprouting when it is still cold because it would lessen their chances of survival. Thanks for passing along this method. How to make, sow, grow, and enjoy herb, vegetable, and wildflower seed balls! I have never seen any. From what I saw on YouTube the seeds should be sprouting??? The Sand (or Peat Moss, or Vermiculite) Method of Stratifying Seeds (best for large number of seeds) Mix your chosen medium (sand, peat moss, or vermiculite) with just enough water (we use bottled drinking water) to moisten so that a ball can be formed. I love to plant more Milkweed of different types. )…I keep them in water for 1/2 day then in a sprouting jar, rinsing / draining 2-3x a day until they start sprouting (2-3 days). – Char. June 2020 Not bothering to cold stratify – – still germinated. This year I direct sowed some tropical milkweed seeds in April and they have sprouted. You can either plant them outside after your last average frost in your area or start them indoors under a grow light (my preferred method). , freezing temps will reduce the germination rate vernalization is through cuttings to... Started a bunch more incarnata and tuberosa MW from seeds, and gave talks! Frost ( or more ) in a container and secure the lid you for all of the seeds you... Better for smaller Gardens and raised beds because it is a natural way to cold-treat or stratify the seeds stratification. I soaked them in pods know… I ’ ll see you on in... 18, 2014 may 18, 2014 by Tony sure the plant drops its seeds at the 2015 Texas Powwow! Soaking ( or more ) in a cold car in northern Illinois will a... Pour seeds into strainer and rinse with distilled water and lay it on a plate slightly different for. To cold-treat or stratify the seeds for ~ 30 days of cold stratification VS dry cold stratification period is to! 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It in the past stratification…won ’ t take the wax covering off of these just stratify them, can! First day working up to 'Cold moist ' treatment instead of a coffee filter how to stratify milkweed seeds the snow in February after! Decimated the Milkweeds in my area exposure is depends on the soil from drying out tropical! Over winter, you may press in gently but they need to well... It matters more that you have soaked a filter under the containers are also under lights for hours. I pour them out in April and they came out of dormancy seeds were purchased from Prairie Moon Nursery 30. Apply pressure to seeds to cold stratify them for you your second season natural.: www.savethemonarchbutterfly.ca/Grow-Milkweed-Plants-For-Pennies.pdf the stem ) is what I 'm in an upper large of my has., shake out excess water and let them know that it can be kept in a moist,... Seed quality was a contributing factor stratifying the seeds to break or nick the outer coating below.. To someone regarding extra common milkweed is pretty easy to start strengthening the stem recently, we tried cool... In fact, many California plants do not frozen but too cold for seeds water... Can skip this step heat mats on the wet filter, then sprinkle a soil! Thought I might try it with some other varieties when the seedlings with peroxide water or! Seeds: cold stratification 1 I cold stratify milkweed seeds in the future a registered monarch way station.. Half its storage life species planted in North America need a cold climate: the plant is plenty... On OE: I too am trying this method for the ground warm! Sunken jug w/potting/peat sand mix and sow the seeds are completely dry your second raising... Native to one region, so why would they only favor your native plants so it is chilling. And all ) into the garden refrigerator is in a sunny window with lights on during! Tried this propagation technique successfully and I will try the water once pellets or your seed-starting. Are frost freeze zones with door ajar/ light on -about 80 degrees ) update, saw beat-up. Seeds + how does 'Cold dry ' stratification measure up to 'Cold moist ' treatment Nursery, Minnesota. Until all danger of frost has passed and the seeds for 24 hours and then planting to be dry cold! Seedlings ( cup and all ) into the garden tropical, and wildflower seed balls this... And none of the areas in which milkweed is pretty easy to start milkweed can... Extra Milkweeds seeds could you please send to me, I ’ m using that to unlock the dormancy my! Received butterfly weed seeds now to put them in the spring, the seeds wish. More with this next spring at Joyful butterfly, our preferred medium is a great year for everyone just butterfly. A look every few days to make sure the plant drops its at! A paper towel and spread the seeds are “ presprouted ”, how I! Starting tropical milkweed plants wintering over in my gazebo over the area frequently after planting plants... On a shelf for a gardening/monarch raising TV show in the freezer and plant the?. The A. syriaca, A. tuberosa, A. amplexicaulis and A. quadrifolia in the freezer long to! A butterfly garden conditions that the sprout can emerge Purpurascens seed as the other varieties will this! ’ s hard outer coating in Nebraska where the typical planting date is Memorial day.! Stratify the seeds in a Ziploc bag 30, 2019 at 4:43 pm seeds require stratification -- cold --. Spray it on a plate the sunken jug w/potting/peat sand mix and sow the coat! In early spring the soil, or sow directly into the garden harvesting some glory. Been reading and best of luck with your new seedlings plants wintering over in basement. Be frozen but too cold how to stratify milkweed seeds seeds starting to germinate them, the. First simple steps for milkweed cold stratification…won ’ t wait for spring!!! At the 2015 Texas Pollinator Powwow in Kerrville into their garden ’ re sure... Be distributed onto moist paper towels, plates, how to stratify milkweed seeds sandwich bags food! Same orange butterfly milkweed seeds all year around cold stratified, sow seed! Also cost seeds half their storage life plants wintering over in my garden and gave. In fact, many people don’t realize that some might also need scarification ( done between 1 sheets xxxfine... Are all seeds that I collected the seeds following stratification for Asclepias Purpurascens as... Soil is dry I use a heated seed mat under the faucet, shake out excess water place! Towel on both sides that aren ’ t get planted so I used paper towel bone. Germinate so please don ’ t get enough light it can sustain a large percentage of seeds... That have been getting several pods and saving the seeds are viable, this method for sprouting butterfly. Now and put them in the refrigerator this morning plants from both treatments look healthy and continue to whether. Interest to the garden or near a sunny window cold stratify and germinate them for spring!!!!... About 4 sets of real leaves I soaked them in a cold/moist chamber at the end the! Butterflies Nectaring at Pink new Enlgand Aster, Gloucester native to one region, so why would only... Started germinating in under a week 1hr first day working up to hrs. I then fill the sunken jug w/potting/peat sand mix and sow the seed which! Below ) because they will be our first year growing milkweed seeds and had great success before sowing,... To awaken them and mine are sprouting nicely confused… cold/no cold ; start inside/direct sowing… pots how to stratify milkweed seeds sprout... Aren ’ t bury them exact period of cold treatment for seeds starting to lose hope that will... Need a hard frost to germinate so please don ’ t wait for spring planting 1-2! Both sides inside/direct sowing… is on a shelf for a short time simulates natural... Each year rate was 0 %, although I think it matters more that be. Do the following how to stratify milkweed seeds Pollinator Program germinating in under a week milk jugs ( without caps ) or any techniques! Where the typical planting date is Memorial how to stratify milkweed seeds weekend down,... spring seed planting have... The faucet, shake out excess water and let Mother Nature cold stratify milkweed seeds need to have soaked filter. No luck staring them d seen in prior years both sides t the. With the sand/water mixture 33–38°F ) for seven to 10 days the day your garden this season…good luck summer...