As they bloom, I keep the old flowers trimmed off so they continue blooming. One customer took a swamp milkweed plant back because it killed the monarch caterpillars. HI Gregg, it depends on a few factors: how long is your growing season, what type of milkweed is growing, and how far back are you going to cut the milkweed? So it might work. With herbicide usage, however, comes the risk of harm to beneficial flora and fauna, including the monarch butterfly. It’s easy to grow your own Milkweed! I had the most beautiful Red Butterflies Milkweed last season!! Luckily, there isn’t all that much that you need to do – though there are a few tips and tricks that you should follow to ensure the perennial growth of … As of now, it’s about 10.5 inches long, and a little scrawny, but otherwise seems healthy. Stress is the usual culprit. I couldn’t find any info (anecdotal or otherwise) that Deer Fence wards off Monarchs. We hosed them off and we had sticks in a pot for the winter. We’ve begun planting A. erosa, A. linaria, and A. augustifolia. I am so excited to see this, but I am wondering if I have any chance of seeds for next years crop, or is this just a feel good moment that wont produce anything for the monarchs this year or a start for next year? Yes, it’s a good idea to cut it down before winter, especially if you have a tropical milkweed. This is perfectly normal! This overuse/reuse of the plants can allow higher concentrations of OE to persist and be passed on to the caterpillars. Won’t the Monarchs not survive when they finally hatch since it will be fall/winter? NOT sure when to prune, frost probably 60 days away. I was a Master Gardener in Calgary for over 20 years and am now an Entomology specialist. Hello from Central Florida! It can pose a challenge for farmers, however, and cutting milkweed plants is not an effective way to remove them because they grow back from their long roots. Avoid planting tropical milkweed as a perennial, since this plant doesn’t die back as others do. A mower company cut mature common milkweed….can I still transplant or will it sprout again this season? This is the plants 2nd year in our garden. chapmanii, sempervirens or stricta) They are all still sprouting new leaves and flowering. Swamp Milkweed will produce several clusters (umbels) of ¼” flowers that are very detailed and intricate. Several kinds of milkweed plants grow in the United States. We’ll also look at sandhills milkweed, which Scott calls the most important milkweed … If you didn’t cut it back to about 4″ from the soil in December it might need to be cut back now. It’s hard to assess from the description. We had an unusual cold snap here in Zone 8, extreme NE Texas. Plant them in the back of the garden and plant a medium or short height plant in front of them. HI Lori, that’s an excellent question, but the answer is “it depends”. It says it is perennial on the pot tag. Since the foliage has already been cut back, it will focus on root development when you move it. I greatly appreciate your info and advice. https://www.gardendesign.com/vines/honeysuckle.html, https://www.desertmuseum.org/visit/sheets/Ascero.pdf, http://monarchjointventure.org/images/uploads/documents/Oe_fact_sheet.pdf, Podcast: Food Sovereignty with Leah Penniman, YouTube: Pruning Citrus Trees – How, When, and Why, Podcast: No-Dig Gardening with Charlie Nardozzi, YouTube: Cabbage Moth and Cabbage Looper ID and Management, Podcast: Bare Root Fruit Trees with Christy. Thanks for the speedy reply! I think I’m seeing new seed pods forming, but as a 1st timer & not really knowing much I could use some guidance. How to Grow Milkweed Plant. I’ve noticed that the leaves of Swamp Milkweed turn a nice purple color in Fall. Flowers form into balloon shaped “hairy balls”. Common milkweed plants grow to about 2 to 4 feet in height, with a thin, vertical growth habit. Q. The long, oblong leaves are light green and grow to about 8 inches long. I treated them for aphids last month. Perennial milkweeds grow back year after year. Flowering doesn’t occur until the second or third year, and only after flowering will you get pods. Most milkweeds are not hybrids, but double check to be sure. I’ve had several sets of Monarch larva, and have seen two crystalist. the milkweed should come back just fine in the spring. The tuberosa saplings are not growing at all… Still about an inch or so tall while the swamp saplings are almost 10-12 inches by now. I wouldn’t spray anything on your milkweed. How did your caterpillars do on that brand? In Southern California do I cut back the milkweed now to get larger milkweed bushes? Your efforts will help bring back the Monarch’s and restore their populations to healthy levels. About half of the branches are drying up while the others are ok. Once the caterpillar morphs into a butterfly the leaves will grow back. Some plants are about 3" - 4" high, some are just pushing up from the ground. Fingers crossed. And I kept monitoring my email to get a response notification. According to the Xerces Society, L.A. is at the southern tip of the range for this plant. Hi live in the CA Bay Area, and have about a 4′ x 25′ patch of native showy milkweed that is flowering and covered with aphid. Thanks for writing in, Bob. But if you want to make it bushier, feel free to pinch. Wait for that. I shall keep you posted on how it proceeds. Here in North Dakota, I pinch back a few milkweeds of both the common and swamp varieties to spread out the bloom time. Thanks for planting native and providing for wildlife! Although most milkweed varieties are drought tolerant, this doesn’t apply to your baby cuttings and seedlings. Another article lists the following: Native Larval Host Plants for Monarchs in South Florida, Curtiss’ milkweed (Asclepias curtisii) The rule of thumb is to cut back milkweed in winter to about 6″ above soil level. If they stay there and leave your other plants alone, great. They look great but someone told me to cut them back now and not wait for winter. They may have more knowledge about Monarch travel patterns in Laredo. Many milkweed varieties sprout new growth on old stems after they flower. There are many varieties of milkweed. The bad news is you can’t reasonably expect any monarchs in Saskatchewan. I want to stick to natives but its kind of hard to get rid of the tropical milkweed since the Monarch caterpillars seem to prefer them, and they are so hardy with the heat. While milkweed can grow quickly, planting species local to your region and researching a bit about growing patterns is a good way to ensure it won’t take over your yard. How to Kill Milkweeds. I live in Florida , it is May and our milkweed had been completely eaten and the plant is just sticks. MonarchButterflyGarden.net states that you can prune off spent flowers if you don’t want to seeds to spread. Milkweed is the only plant on which the Monarch butterfly will lay eggs. Monarch caterpillars feed exclusively on the leaves of milkweed, the only host plant for this iconic butterfly species. I don’t need more plants, but a couple organizations collect milkweed seeds, so I give the seeds to them. It the common milkweed and I live in northwestern Ohio, growth zone 6a. This year the milkweed has had a terrible time with rust. If the plant already has seed pods, I’d let it go to seed and collect them for next year. I am now a Texas resident with lots of the same milkweed incarnata ‘soulmate’ that I bought as good sized seedlings. How to Kill Milkweeds. If the stems have been denuded of leaves, cut them back to a few inches above the ground. So they may just be really slow growing. In this study we divided 23 milkweed patches into three sections each. I’m guessing the prairie sightings on the map are likely misidentified Viceroys. Since milkweed has the word “weed” in it, chances are it will come back. That said, I’m always hopeful, and nature is powerful. Good luck. I live in santa barbara and we had aphids on our milkweed as well. If you prune the tips off, that will help trigger new growth. Okay thank you, I appreciate the information! Blazing star (Liatris garberi, gracilis, or chapmanii) AND the spray has definitely kept deer off the plants. It is hardy in USDA zones 9 through 11 and reaches 2 to 3 feet tall with a spread of 1 1/2 to 2 feet. Some say down the the ground, others day leave about 4″ above soil level. Common milkweed (Asclepias syriaca) is a native herbaceous perennial whose main virtue is its appeal to butterfliesespecially the monarch, which deposits its eggs on the milkweed. https://www.thespruce.com/milkweed-plants-monarch-butterfly-host-2132954 I've tried growing other types of milkweed with no success. White vine (Sarcostemma clausum), Native Nectar Plants for Monarchs in South Florida, Mist flower (Conoclinium coelestinum) Will milkweed grow back? Learn how your comment data is processed. Dogbane grows much taller than milkweed (often more than a foot) before the leaves fold out and begin to grow, while milkweed leaves usually fold out at about six to eight inches. Monrovia recommends bringing it indoors before first frost. We live in Missouri and keep our milkweed watered during the dry, hot summers but other than that I don’t know what kind of maintenance is best. I launched Grow Milkweed Plants to help citizen scientists locate and learn about milkweed … Would it be possible to prune these plants to keep them at a more manageable height or should I get a whole lot of stakes to try and hold them up? Its April and I am seeing a few Catapillars. Swamp milkweed's fragrant blossoms are mauve, pink or white. Or…perhaps I’ll just do it and report back. We cut back one section of each patch in June, another section in July, and the last third we left alone as a control. Last fall I cut the plants down to about 6 inches above ground level & this year’s growth appeared to have come from the stems that were cut down plus new growth. Not sure. Asclepias exaltata, Poke Milkweed, got its name because the leaves resemble those of the pokeweed plant. You can keep the dead stalks in place until Feb or March for winter interest or for insects who might overwinter. It may be too late for grow-through supports now, but if you prune the milkweed back you might be able to install one. April 10 at 10:25 am. aka Wooly milkweed. I’d leave it. I don’t know if you get snow in Laredo (I’m guessing not very often), but if so, you’d cut it back before your frost dates, which might be earlier than late fall. I have planted Butterfly Flowers – Asclepiade Incarnata. You can cut it back and that will trigger new growth. I hope this helps! I’d like to cut it back because it looks rough. I don’t know much about swamp milkweed, since it isn’t native to my area, but I did find this: swamp milkweed propegates from rhizomes (in addition to seeds) so it will keep growing year after year if you don’t let the seeds disperse. I need a lot of water so plant me where my feet will stay wet. Most milkweeds that I’m aware of will sprout again. After planting, water your cuttings every few days until they’re actively putting out new growth. 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