I have a ton and a half of milkweed but have noticed some is not lasting like it should. So, I have been doing a little bit of research on my own and realized that the way you spray/water the plants makes a large difference. It seems like a standard greenhouse can grow it, but different hoses and watering methods and schedules can make a really huge difference in the end! Does anyone know if this kind of teejet sprayer has a shower setting? I think that might make all the difference. Let me know as possible, I am only a couple years into this hobby so I am always open for advice!
I can't really help about sprayers, but there are many species of milkweed and they have different requirements. I grow two native species in the yard here in New Mexico, and they tend to be pretty weedy and invasive. In the greenhouse I have 5 species of exotic milkweed from around the world, Morocco, Thailand, Malaysia etc. I think temperature, watering, humidity all can affect the happiness of the plants. Many expect to go down for the winter and look rather shabby this time of year- for me. I have never experimented with types of sprayers though, I just use simple sprayers once or twice a day to maintain humidity since this is a very dry climate. Rick
Agree with Rick... there are many species from many different habitats and with many different requirements.
Like with many "wild" plants grown at home, I think folks over babysit them and cause a lot of their own problems. Providing as close to a natural habitat like where they grow wild for them as possible is a key, and if you don't have habitat controllable facilities for them stay with species that are tolerant of the environmental zone where you live.
I live on the desert where on average it is hotter than where Rick is, so some Asclepias here are a challenge. The 8-9 years I spent going back and forth to Hawaii doing rearing studies on Vanessa tamehameha, Vega blackburnii, and Danaus plexippus form nivosus I wish I had grown Calotropis gigantea here at home. While tropical it is hardy, will stand neglect and even thrive in some habitats in the southern half of the US. But, the ex wanted all the trips to the islands...