Melocactus conoideus (Turk's Cap Cactus)

Botanical Name: Melocactus conoideus

Common Name: Turk’s Cap Cactus, Cone Melocactus

Melocactus conoideus is a rare and distinctive cactus native to Bahia, Brazil. It is known for its conical blue-green body and the striking woolly cephalium that forms at maturity, from which small pink flowers emerge. This species is highly sought after by collectors and prefers warm, stable conditions. Unlike many cacti, it does not tolerate cold well and should be grown in containers in most climates. SHIPPED AS A YOUNG BARE ROOT SPECIMEN.

Care and Cultivation:

• Prefers bright light to full sun

• Water sparingly during active growth

• Use a fast-draining cactus soil mix

• Best grown in pots to control moisture and temperature

Frost Tolerance and Cold Hardiness:

• Best suited for USDA Zones 10–11

• Not frost-tolerant

• Protect from temperatures below 40°F (4°C)

Winter Dormancy and Health:

• Does not require a cold dormancy

• Maintain light watering and warmth in winter

• Avoid cold, wet conditions

Notes:

• Cephalium ("cap") forms only at maturity, 10–15 years

• Growth slows significantly after cephalium appears

• Sensitive to overwatering and cold