Begonia palmata

Begonia palmata is a perennial in the begonia family. Its native range spans parts of southern and eastern Asia. These include China, India, Nepal, Bangladesh, Myanmar, Thailand, Laos and Vietnam. It grows in forests, scrub and damp valley sites. Wild plants also grow on moist rocks near streams. Its range reaches from low ground to high mountain sites.

The plant forms a bushy clump with upright, branched stems. These grow from a long rhizome. Garden plants reach about 1.6–3.3 feet (0.5–1 metre) tall and wide. Wild descriptions give heights of 0.7–3 feet (0.2–0.9 metres). The green leaves have uneven sides and deep lobes. Their surfaces can feel rough, hairy or wart-like. Some leaves have pale marks. The foliage drops as the plant dies back for winter. Small white or pale pink flowers form loose groups. The flowering season runs from spring through autumn.

Good drainage matters when growing this species. The RHS lists loam and accepts acid, neutral or alkaline soil. Useful Tropical Plants gives a preferred pH of 6–7. The sources differ on light needs. RHS allows sun or partial shade and recommends sun in cultivation. Useful Tropical Plants says the plant does not need strong light. PFAF places it in woodland gardens with dappled shade. Choose a sheltered site and keep it free from frost. Its RHS H2 rating means it cannot survive freezing. It performs poorly outdoors in much of the UK. A sheltered woodland site may suit it in milder areas.

Gardeners grow it for its leaves and small flowers. RHS lists containers, patios, courtyards, greenhouses and conservatories as suitable settings. It also lists cottage and informal gardens. Plants take two to five years to reach full size. Remove spent stems and leaves when winter dieback begins. Spring basal or stem-tip cuttings provide a way to raise plants. Seeds may take a year or more to sprout.

Aphids, thrips, mealybugs and caterpillars may attack the plant. Red spider mites and vine weevils are further risks. Grey mould, powdery mildew and stem or rhizome rot may occur. Sources report cooked leaves as food and roots in traditional medicine. PFAF lists no known hazards, but this does not establish pet safety.