Rainbow cactus (Echinocereus pectinatus)

Rainbow cactus

Also known as: Purple candle cactus, Weniger's hedgehog cactus

Rainbow cactus (Echinocereus pectinatus) is a solitary cactus named for its flowers which range in color from white or yellow to lavender or magenta. Showy blooms appear from late spring to early summer and last a few days before falling off. It prefers sun to partial shade and needs well-drained sandy soil with no over watering.

Scientific classification

Species

Rainbow cactus (Echinocereus pectinatus)

Pinks, cacti, and allies

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Perennial

Lifespan

Succulent

Plant Type

Spring

Bloom Time

Mid winter, Late winter, Early spring, Mid spring

Harvest Time

60 cm

Plant Height

25 cm

Spread

20 - 38 ℃

Ideal Temperature

Images of Rainbow cactus

Culture

Symbolism

Endurance

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Care Guide for Rainbow cactus

Every 3 weeks

Water

Full sun

Sunlight

20 - 38 ℃

Ideal Temperature

Succulent & Cactus Soil

Soil Type

Water: Native to arid regions, rainbow cactus thrives with minimal moisture and has high drought tolerance. Watering once every three weeks ensures soil dryness. Ideal for indoor cultivation, rainbow cactus maintains its vibrant appearance year-round as an evergreen plant, adapting well to varying home humidity.

Fertilize: Fertilize rainbow cactus monthly with diluted succulent and cactus food during the growing season (spring-summer) to enhance health and flowering. Avoid winter fertilization to promote dormancy. Water before feeding and use one-quarter strength to prevent root burn. Adjust feeding frequency based on plant response.

Pruning: Rainbow cactus requires minimal pruning. It is essential to remove withered flowers and branches to direct nutrients toward healthy growth, ensuring optimal plant health.

Propagation: Rainbow cactus thrives in rocky desert areas, producing vibrant pink to purple flowers. Propagate by sowing seeds in well-draining soil and maintaining consistent moisture. Seeds sprout in 2-6 weeks with warmth and indirect sunlight. Transplant mature seedlings into individual pots for optimal growth.

Repotting: Repot rainbow cactus every 2-3 years in spring using a slightly larger, well-draining pot. After repotting, ensure bright light and minimal water to support growth while minimizing stress. Attention to rainbow cactus's specific needs is crucial for its flourishing health.

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