Growing Spring Cactus (Hatiora gaertneri): Holiday Bloom Indoors

Plant Profile

Spring cactus (Easter cactus) is an epiphytic forest cactus from Brazil. Blooms in spring triggered by cool nights (40–50 °F) and long nights (13+ hours darkness) in fall.

Light

Bright indirect light indoors (south/west window). Light shade outdoors in summer. No direct sun.

Watering

Water when surface of mix feels dry. Avoid overwatering (root rot, bud drop) or complete dryness.

Temperature

60–80 °F day, cooler nights. Protect from sudden changes.

Fertilizer

April–August: balanced 20‑20‑20 houseplant fertilizer monthly at half strength.

Repotting and Bloom

Repot after flowering in well‑draining cactus mix. Provide fall cool/dark period for next year’s buds.