Veratrum viride aka American False Hellebore

Veratrum viride is a tall perennial in the Melanthiaceae family. Its common names include false hellebore and Indian poke. It is native to North America, including parts of Canada. Its US range reaches Alaska and several western and eastern states. It grows in swamps, damp woods, meadows, and along streams. In North Carolina, it occurs in mountain habitats.

The plant forms upright clumps and loses its leaves each year. NC State gives a height of 2–6 feet [0.6–1.8 metres]. RHS lists taller plants at 5–8 feet [1.5–2.5 metres]. These garden ranges differ, with RHS allowing the greater height. Clumps spread about 1–2 feet [0.3–0.6 metres]. Strong stems carry broad green leaves with deep folds. The leaves clasp the stems and show clear, parallel veins. They reach about 1 foot [0.3 metres] long. RHS notes fine hairs on their lower sides. The stems also have a downy surface.

Small green or yellow-green flowers form branched panicles above the leaves. NC State records bloom in spring and summer. RHS places flowering in summer. Each flower has six petal-like parts and a shallow, open shape. The fruit is a capsule that splits into three sections. It then sheds many flat seeds. Plants spread through both seeds and underground rhizomes. Gardeners can raise them from seed or divide established clumps.

Choose a sheltered spot with deep soil rich in organic matter. Partial shade suits the foliage better than full sun. Sun can work where the soil stays moist. The plant tolerates wet ground, though RHS favors moist, well-drained soil. It accepts clay, loam, sand, and chalk across a broad pH range. Its growth rate is moderate. RHS gives two to five years to reach full size. NC State lists USDA zones 3–7; RHS rates it H7. Its bold leaves suit woodland, pond-side, and native gardens. RHS also lists borders and use as cut flowers. No routine pruning is needed. Slugs and snails may damage plants, but diseases seldom cause trouble.

All plant parts are poisonous, so this is not a food plant. RHS also warns that dogs can suffer poisoning after eating it. Steroidal alkaloids account for its toxic effects. Symptoms can include mouth pain, vomiting, diarrhea, weakness, and convulsions. NC State warns that its nectar may also poison honeybees. Wear gloves and protective gear when handling it.