Echinopsis chamaecereus (Peanut Cactus)

Scientific Name

Echinopsis chamaecereus H. Friedrich & Glaetzle

Common Name(s)

Peanut Cactus

Synonym(s)

Chamaecereus sylvestrii, Chamaecereus silvestrii, Lobivia silvestri, Cereus silvestrii

Scientific Classification

Family: Cactaceae Subfamily: Cactoideae Tribe: Trichocereeae Genus: Echinopsis

Description

Echinopsis chamaecereus is a branched cactus with many crowded pale green finger-like stems. It grows up to 6 inches (10 cm) tall. Stems are up to 6 inches (15 cm) long and up to 0.5 inches (1.2 cm) in diameter. They have 8 to 10 ribs and 10 to 15 soft white bristles per areole. Flowers are orange-red and up to 2 inches (5 cm) in diameter. Several flushes of flowers appear from late spring to early summer.

Hardiness

USDA hardiness zones 10a to 11b: from 30 °F (−1.1 °C) to 50 °F (+10 °C).

How to Grow and Care

Peanut Cactus needs a well-draining potting mix. Water the plant thoroughly until water comes through the pot's holes and let the soil dry at least halfway down the pot before watering again. In winter, decrease or withhold water. The plant will look shriveled, and stems can take on a reddish tinge, but the Peanut Cactus will plump up again and return to its normal color in spring.

This cactus grows well in hanging baskets or shallower, 4-inch (10 cm) nursery containers because it is shallow-rooted. Hybrids can take deeper pots. It is difficult to transplant older clumps of Peanut Cactus because the stems break apart so easily. Fertilize the cactus once a year during the growing season using a balanced fertilizer at half the recommended strength. In areas with hot, dry summers, grow Peanut Cactus in areas that get partial shade. In areas with cool summers or temperate climates, grow it in full sun.

Learn more at How to Grow and Care for Echinopsis.

Origin

This species is native to Argentina (Tucumán).

Cultivars and Hybrids

• Echinopsis chamaecereus 'Cristata'
• Echinopsis chamaecereus 'Lutea'
• Echinopsis 'Annie'
• Echinopsis 'Arlequin'
• Echinopsis 'Boom'
• Echinopsis 'Cactus Art'
• Echinopsis 'Captain Jessop'
• Echinopsis 'Yellow Bird'
• Echinopsis 'Rose Quartz'
• Echinopsis 'Rot Violet'
• Echinopsis 'Violet'
• Echinopsis 'Westfield Alba'

Links

• Back to genus Echinopsis
• Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus

Photo Gallery

Click on a photo to see a larger version.

Photo via cactusmania.canalblog.com

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