January 2026

What is milkweed used for? Ethnobotanic: Milkweed has been used for fiber, food, and medicine by people all over the United States and southern Canada. Fibers from the stems of milkweed have been identified in prehistoric textiles in the Pueblo region. Tewa-speaking people of the Rio Grande still make string and rope from these fibers. […]

What is the best time to plant milkweed seeds? Fall planting – fall is the best time for planting milkweed seeds. The seeds won’t germinate until spring because they require natural freezing and thawing to soften the seed coat so that the embryo plant can grow. This process stops seedlings from emerging in the fall

What is the common name for milkweed? Asclepias syriaca, commonly called common milkweed, butterfly flower, silkweed, silky swallow-wort, and Virginia silkweed, is a species of flowering plant. It is native to southern Canada and much of the United States east of the Rocky Mountains, excluding the drier parts of the prairies. Not only is milkweed

Is common milkweed bad? Leaves or other above-ground parts of the plant are poisonous. They contain several glucosidic substances called cardenolides that are toxic. Milkweed may cause losses at any time, but it is most dangerous during the active growing season. Myth #4: Because milkweed is toxic, you shouldn’t plant it Milkweed does contain toxins

Can you purchase milkweed? More than 200 vendors that sell native milkweeds in various regions of the country are currently listed. In order to keep many species in the Milkweed Market available, we rely on local seed collections from across the country. Most milkweed species grow particularly well in disturbed areas, so start by looking

What is the best month to plant milkweed? Ideally, the best time to plant milkweed seeds is in the fall so the cold temperatures and moisture that come with winter stimulate germination. Milkweed can take its sweet time to germinate. It needs the ideal conditions–the right amount of moisture, warm temperatures, and a good amount

How toxic is milkweed to humans? Although many milkweeds contain resinoids, most of the ones that cause fatal poisonings contain cardenolides (cardiac glycosides). These cardenolides are similar to digoxin causing electrolyte balances in heart muscle resulting in arrhythmias and cardiac failure. The toxic nature of milkweed is due to one of two agents: cardiac glycosides

What month do you plant Knock Out Roses? Planting Containers Shrub roses can be planted March to November. Dig a hole no deeper than the depth of the container and 6 or wider on the sides. Winter is a good time to trim Knock Out Roses. While the plant is dormant, there is less chance

How do you rejuvenate knockout roses? Feed every 4 to 6 weeks or use BioAdvanced Rose & Flower Fertilizer, which provides slow release nutrients for up to 4 months. Prune as needed to keep plants within bounds. Keeping the center of the plants open will increase air circulation help prevent disease. In winter, prune Knockout

How big do Knock Out Roses get? Knock Out® roses generally grow three to five feet tall and equally as wide, but some sources say they can reach eight feet tall if not pruned, so be sure to space them appropriately. After planting, water them regularly until they get established. A Knock Out rose will