Trillium erectum aka Bethroot

Trillium erectum is a perennial wildflower known as red trillium. It belongs to the Melanthiaceae family and grows in eastern North America. Its range runs from Manitoba east to Nova Scotia. It extends south into Georgia and Alabama. It grows in woods with broadleaf trees or mixed trees. Wild plants occur in both dry and moist woodland sites. They also grow among laurel and rhododendron at higher elevations.

Garden plants reach about 0.75–2 feet [0.23–0.61 metres] tall. Their spread is about 0.5–1 foot [0.15–0.30 metres]. RHS gives a broader spread limit of 1.6 feet [0.5 metres]. Thick underground rhizomes send up one or sometimes two stems. These stems have no branches and carry three leaf-like bracts. The broad bracts lack stalks and form a single whorl. Their shapes range from diamond-like to broad and egg-shaped. The foliage falls away each year. Plants spread slowly into clumps when left alone.

A single nodding flower rises above the bracts in spring. April to May is the main bloom period. Each flower has three petals, most often red or maroon. Some flowers have pink, green, or yellow tones. Yellow anthers stand out against the darker petals. The flowers make no nectar but give off a foul smell. This scent draws flies, beetles, and fungus gnats. Two moth species use the plant to feed their larvae. Small mammals eat its berries.

Give this plant deep soil rich in humus. Sand, loam, and clay can all suit it. Acid to neutral soil should stay moist but drain well. It needs steady moisture rather than standing water. Light shade in spring and deeper summer shade suit it. Add leaf mulch in autumn and leave established clumps undisturbed. It handles cold well but dislikes heat. Sources list USDA zones 4–7 and UK hardiness H5. It suits woodland beds, shady borders, and planting beneath shrubs. No pruning is needed. Seed-grown plants may take five to seven years to flower.

Slugs and snails can damage plants, though serious problems are uncommon. Leaf spot, rust, and smut are possible diseases. Moving plants can be difficult because they transplant poorly. Sources report young leaves as edible, raw or cooked. This does not make every part safe to eat. NC State flags the species as mildly poisonous. PFAF warns that large doses can cause nausea. It also reports skin irritation and effects on menstruation and labour. Indigenous peoples used the roots as a childbirth aid. Avoid medicinal use during pregnancy because of these reported risks.