They’re all in the same family, however. Huge milkweed leaves, tall bushy plant … it’s the dream of a Monarch enthusiast, especially one that brings in caterpillars and raises them indoors. I soak them in water overnight, plant the seeds in a tray (with dome) to trap humdity. Let me know thanks.


  • Hi Christina, Calotropis gigantea (giant milkweed) may be what you’re growing.

    Hope this may be useful to others. We call them Crown Flower plants and make lei with the flowers. Females oviposited on the plant every year, but I was really hoping to see those incredible flowers first hand. Blooms in under a year. With over 140 different types of milkweed, there are milkweeds that grow well in almost every hardiness zone. Like many of the plants we grow for fun, we had no idea that giant milkweed was an Indian plant until a visitor told us. Over 20 species are native to Georgia, but finding them for sale can be a daunting task. I’ve been putting off purchasing one of the varieties of Giant M/W Trees until just this year. The seeds were moist and warm when I dug them up. I lost 8 plants over winter to too wet of a soil mix. These leaves grow to over 12″ long… The giant milkweed is native to India, Malaysia, Indonesia and China. I’m sure it will prefer your growing conditions down south…good luck!

  • Hi Tony,

    I bought some Calotropis Procera seeds a few weeks ago from smartseeds. The seeds looked very healthy and were not damaged in any way. I grow a lot of plants from seed so I am not an amateur but I can not explain this one. First pic is the wonderful mauve flowers. Late this summer, there were few caterpillars and the Monarchs preferred the Tropical. I’ve googled many websites, but can’t seem to find any answers. A: Thanks for bringing in a sample of the insect as there are two very similar looking. And for monarch enthusiasts who rear caterpillars in cages, giant milkweed leaves can be refrigerated. – Would have to grow something like this indoors here all year around…

    It sure sounds like the huge leaves of Calotropis might make things easier as an abundant host food for monarch cats. I live in Nothern Virginia, so if I get them going they would have to go into pots, not a problem, since I have a greenhouse to overwinter them in, I just need to know what the next step is and if it possible to grow them from cuttings