Asclepias tuberosa should be a reliable perennial for you…. Thanks for your comments. The follicles contain tan to brown seeds that are ovate in shape and 6–7 mm (0.24–0.28 in) long. I live in Central Florida and it is March 1st now. You want to cut all plants back at some point to let fresh, OE-free foliage grow back…. If you’re looking for a California native, you might try tuberosa, but it’s not a preferred milkweed species for laying eggs. Under these conditions, tropical milkweed produces higher cardenolide concentrations. They will migrate, or not, as it suits them. It’s now the middle of July and my plants are only about 6-8 in. Milkweeds in the genus Asclepias provide the only plant material monarch caterpillars can eat. Thank you. That is what we call the Precautionary Principle. If you bring plants indoors to overwinter, you can take cuttings a couple months before your average last frost. If you bought curassavica now would be a great time to cut it back. Hi Bud, you can fall plant seeds around November (you don’t want them to germinate before winter). You could also try starting some indoors a couple months before your average final frost. If the milkweed was their cue for leaving, they’d be leaving much later. Tropical Milkweed (Asclepias curassavica) Quick Facts: Host plant to Monarch and Queen butterflies, nectar to many Annual in most of US, perennial in USDA zones 9-11 I feel like I have 3 kids. I plan on growing tropical milkweed from seed this spring in St. Louis and have a few questions. I live in Pennsylvania and received tropical milkweed seeds from a friend. If you are fertilizing, I suggest waiting until the seedlings are more established. Here’s more info: Well, today I figured out why I haven’t been able to get my tropical milkweed plants, grown from seed, to bloom. I transplanted it into a 5″ planter and I notice that there are small shoots growing. It has some new growth but looks awful. I read they eat squash. also, just as a heads up Home Depot mostly carries plants with nematicides which some say has adverse affects on some insects not just nemotodes. Where it is most likely effecting monarchs is in warm weather regions where it grows all year and monarchs could overwinter. It might be from too much moisture. I am in Oregon City Oregon. tall. It’s September 10, and I just found a zip lock of asclepias curassavica seeds. I let the plants grow to maturity each year but don’t know just when to cut them down. Any suggestions? The Tropical Milkweed seems to [email protected] times that way. Thank you, Hi Helen, tropical milkweed is a tender perennial in your region, so you might want to leaf mulch in late fall to give the roots some extra protection. Brian. If you want to start early in spring for a longer flowering/seeding period, try spring sowing around the beginning of March: Live in Dallas. Asclepias nivea var. Temps with heat index 112 and strong afternoon storms daily. Our plants don’t lose leaves up north. Unfortunately, again it did not bloom. I want it to flourish. Organizations engaged on conservation of monarch butterflies as well as conservation in general list only native milkweeds. Is there a way to save them or are they all useless to plant for next year? I’m thinking about putting up a butterfly house but not sure if the butterflies actually use them. https://www.monarch.org.nz/wp-content/uploads/2016/09/ISSUE_18_SPRING-2016-HYPERLINKS.pdf, Hi Tony I live in Orange county, Calif., and have a new container of the “Silky Gold.” Lots of aphids, other than using a small brush, any other methods I could use to ride them ? Perhaps most famously, milkweed species serve as the host plant for the monarch butterfly. Received some A. Curassavica seeds and have 3 seedlings coming undergrowth light in the basement so excited, each day its seems one more pops up planted 15 seeds and using my tiny warmer as well. Can you tell I’m impatient for it to start growing? However, if you regularly monitor your garden, having single plants is fine. Hi Renee, tropical milkweed seeds and it can also be started with stem cuttings: Hi tony Anyone grow tithonia diversifolia i have done other mexican sunflowers. http://i60.tinypic.com/14l0wao.jpg Do you know what it is and how can I fight it? Because my native milkweed plants just didn’t thrive, I had to keep buying the tropical plants to feed my hungry babies (there are now 12-13 potted plants on my outdoor patio, 3 in the ground). 100 Tropical milkweed seeds Asclepias curassavica Red /Monarchs Butterfly 2020. Hi Ginny…typically the migration is over at the beginning of November, but things went a little late this season. I would not spray neem oil either on these plants. Hi! Thank you for all of the informative posts. I am curious about the Silky Gold Milkweed. It seemed quite healthy, with many flowers. (as is the milkweed). Hi Linda, they probably just died back to the ground and new growth should start to emerge when it gets a little warmer. Please let me know. Here’s more info on the potential problems/solutions with tropical milkweed: hello tony, i checked all the tops of my mexican milkweed, Asclepia curassavica, and i can’t find any growing tips that aren’t producing flower buds. When the stalks get too tall, I cut them back to 12″, and make 3 cuttings from one stalk. I suggest contacting a gardening expert in your region to see if they have come across this. Year-round plantings in the USA are controversial and criticised, as they may lead to new overwintering sites along the U.S. Gulf Coast and the consequent year-round breeding of monarchs. Your response should be to remove it and quit promoting the use of it unless it’s proven to not harm butterflies. Hi Robert, it’s not a sure thing as a perennial in your region, but leaf mulching in fall should help some survive. it’s always a good idea to have at least 6 plants to a patch in case caterpillars finish off an entire plant. Lower leaves turn yellow and fall off. Any info will be much appreciated! [27] It also attracts members of the Danainae subfamily, such as the queen. Hi Chris, congratulations of your “problem”! Hi Andrew, you could also just direct sow in the garden after you cold stratify. Tropical milkweed responds well to pruning and fertilizer. 50 Superior Quality Tropical Milkweed Seeds - Grown in California - Asclepias Curassavica - Monarch Butterfly - Orange and Dark Red 5.0 out of 5 stars 4 $9.99 $ 9 . Mine have done way better in near full sun. Asap and see if anything different happens in year 2 off with water, to no instructions it. 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