How to eat common milkweed, season by season

Warning: some wild plants can kill. Milkweed has toxic look-alikes, and milkweed itself contains compounds that are harmful raw. Eat nothing that has not been positively identified by someone who knows the plant or checked against a reliable regional field guide, and cook every part described here.

Common milkweed (Asclepias syriaca) grows along fields, roadsides and fence lines across much of eastern and central North America. Children know it for its late-summer pods, which split to release seeds on white floss that drift off on the wind. Bushcraft practitioners strip the fibers from the dead stalks for cordage. As food it was long neglected, largely because generations of wild-food books repeated one another’s claim that it was intensely bitter and needed boiling in several changes of water.

Modern foragers who went back to the plant itself found that common milkweed is not bitter at all. One boil is enough, and the flavor is mild, green and slightly sweet. Some of them suspect the bitter plant in those older accounts was really dogbane, the look-alike this page warns about.

How to identify common milkweed

Two poisonous plants are regularly confused with it: hemp dogbane (Apocynum cannabinum) and butterfly weed (Asclepias tuberosa, an orange-flowered milkweed that is not eaten). Dogbane contains cardiac glycosides that affect the heart.

Features of common milkweed:

• Leaves: in opposite pairs, oblong to oval, about 4 to 9 inches long and 2 to 4 inches wide, with smooth edges. They are thick and firm but not succulent.
• Hairs: the whole plant, stem included, is covered in fine soft hairs and feels velvety. Dogbane is smooth.
• Stem: single, stout and green, usually unbranched. Dogbane stems are thin, often reddish or purple, and branch in the upper part as the plant matures.
• Flowers: dense, rounded clusters of pinkish-purple flowers. Dogbane has small white flowers in smaller clusters.
• Pods: plump, warty, 3 to 5 inches long when full size. Dogbane pods are long, slender and usually paired.

Both plants bleed white, milky sap when broken, so milky sap alone proves nothing. Ohio State University Extension publishes a clear side-by-side comparison (Ohio State BYGL). Some older guides suggest a tiny taste test, on the idea that milkweed is mild and dogbane bitter. Do not identify any plant by tasting it.

Young spring shoots are the hardest stage to tell apart, since neither plant has flowers or pods yet. A beginner should start with flower buds and pods from plants already identified earlier in the season, then return to the same patch for shoots the following spring.

What to eat, and when

Milkweed offers something different at each stage from late spring through late summer:

• Shoots and tender new growth
• Young leaves from the top of the plant
• Flower buds and flowers
• Immature seed pods, including the soft silk inside

Monarch butterflies depend on milkweed, so take a little from each patch and leave most plants standing.

How to cook each part

The plant can be boiled, sautéed or fried as fritters. Each part needs only one pot of water.

Flower buds and flowers

Parboil the bud clusters or opened flowers for about 3 minutes. Serve half with butter and salt. Coat the rest in egg and seasoned flour and fry them as fritters, which are excellent with a little honey. Parboiled buds also go well in soups.

Young leaves

Take the soft leaves near the top of the plant. They can be boiled once, but they are better parboiled briefly and then fried in a little olive oil until crisp at the edges, with an earthy flavor.

Immature seed pods

Pick pods that are firm and no more than about 1 1/2 inches long. Inside, the seeds should be white and the silk soft and moist; brown seeds mean the pod is too old. Boil them for 5 to 7 minutes, or boil briefly and then fry. Slightly larger pods can be split open for the silk, which turns gooey and mild when cooked.

Shoots and new growth

Shoots come up in late spring and are cooked like asparagus: boil until tender, around 10 to 20 minutes depending on thickness. In summer, a similar vegetable comes from the soft growing tips of mature plants. Snap off the top few inches, keep the small leaves, and boil for about 10 minutes.

A milkweed meal

The parts combine well on one plate: boiled flowers with butter and salt, flower fritters with honey, fried and boiled pods, and a stir-fry of young leaves. Because the plant spreads freely and gives food for months at a stretch, it is one of the more productive wild vegetables in the regions where it grows, once it has been identified with confidence.