Eucrosia bicolor: The Lily-Like Bulb with Exotic Spidery Flowers

Eucrosia bicolor, a South American bulb, produces striking umbels of red, lily-like flowers with extraordinarily long, protruding stamens—resembling spider legs. Blooms last ~2 weeks; 2–8 flowers open sequentially per stem. Strappy, glossy leaves (40–60 cm) emerge after the flower stalk.

Unique Temperature Needs

Unlike most bulbs, Eucrosia requires warmth for dormancy (20°C / 68°F, dry, 2–3 months). Cold (4–6°C) only tolerated if dry. No cold period needed for flowering.

Light & Growth Cycle

Morning sun, afternoon shade. Light triggers stem formation. Plant bulbs in small pots, ⅓ exposed. 2–3 months to bloom.

Watering & Feeding

After planting: increase water gradually. Summer: every 2 days when surface dry. Feed every 10 days with bloom fertilizer after stem tip appears. Stop when leaves yellow (dormancy).

Soil & Dormancy

Loam, sand, peat (equal parts). Dry storage during dormancy. Repot annually.

A conversation-piece bulb for collectors seeking the unusual.