People who live in wetter climates would be surprised, and probably amused, to learn what efforts I’ve made to have common weeds like nettles, burdock, chickweed, and milkweed grow on my property. Common milkweed, Asclepius syraica, has been especially difficult because it really does like moist soil and doesn’t tolerate “dry feet” or alkalinity gracefully. It took a couple of tries before I got any to germinate, and now I finally have a few plants, which have to be watered and tended and fussed over as if they were orchids until they get stronger. I had to borrow photos because my own milkweed is still a bit on the spindly side.
One might well wonder why I bother. One reason is that I like to eat milkweed, especially the young seed pods, but the shoots and buds are just fine too. It’s a true nose-to-tail vegetable. Another is that I am transitioning from annual veggies to perennial wherever possible, and A. syraica is a good useful perennial that doesn’t require soil disturbance to grow. A third reason is that the flowers are fairly ornamental and send out a cloud of perfume reminiscent of flowery vanilla.
A fourth reason can be seen on this map:
Notice how the sightings in New Mexico just peter out, while the ones in wetter areas east and west continue northward. Compare this to the maps on the same site for larvae and for milkweed. The migration of monarch butterflies from Mexico to the northern US is a migration of generations. The butterfly that arrives in Montana may be great-great-grandchild to the butterfly that flew north from Michoacon. All along the way they need breeding habitat, and their larvae feed on A. syraica and a couple of other closely related milkweed species. The leg of the journey through desert northern Mexico and southern New Mexico is a barren one, and a few milkweed oases along the way might help more monarchs make it to Colorado and further north. I can’t guarantee it, of course, but it seems worth a try. Adult monarchs will sip nectar from many flower species, but the fate of the larvae is tied to milkweed supply.
You can read more about monarch conservation here:
Since my plants are still too young to pick for eating, I won’t be writing about milkweed in the kitchen until next year, but you can obtain the two wonderful field guides by Samuel Thayer, The Forager’s Harvest and Nature’s Garden, and be prepared to forage and cook any common wild edible. I never tire of recommending Thayer’s books, which contain great detail about identification and culinary use at various stages.