Goat's Horn Cactus (Astrophytum capricorne v. major) Seeds – Large Form, Twisted Spines, White-Flecked Body, Yellow Red-Centered Flowers

Minimum: 10+ Seeds

Goat's Horn Cactus Seeds (Astrophytum capricorne var. major) — The Large-Form Sculpture With Twisted Horns

Goat's Horn Cactus is one of the strangest, most theatrically spined cacti in cultivation: this large-form variety develops dramatically long, twisted spines that genuinely resemble the horns of a goat... the origin of its Latin name, from 'capri' meaning goat and 'cornu' meaning horn. Native to arid Coahuila and northern Mexico, this major variety represents the larger-growing expression of the species, eventually reaching up to 4 feet tall and 6 inches diameter, developing from an initially spherical young form through an ovoid stage into a columnar silhouette. The gray-green epidermis is scattered with characteristic white woolly flecks giving Astrophytum its genus-defining texture. Each areole produces 5-10 spines, grey to brown, wiry, twisted and curved, up to 3 inches long... stiff yet surprisingly pliable and fragile, requiring gentle handling. Come summer, mature specimens (3-4 years or older) reward growers with sweetly fragrant yellow flowers featuring a striking dark red center, up to 3 inches across, followed by small reddish fruits covered in flattened spines. Slow-growing but genuinely unforgettable.

Who Grows Goat's Horn Cactus Seeds?

Serious cactus collectors seeking dramatic, sculptural spine display. Anyone fascinated by the strange, alien architecture of Astrophytum. Patient growers willing to wait years for flowering.

What This Large-Form Mexican Star Cactus Actually Is

Astrophytum capricorne var. major, Goat's Horn Cactus, Zebra Plant. Native to Coahuila and northern Mexico. Large form, reaching up to 4 feet tall and 6 inches diameter at maturity. Solitary stem, globose when young, becoming ovoid then columnar with age. Typically 7-9 ribs. Gray-green epidermis covered with white woolly flecks. Spines 5-10 per areole, grey to brown, long, twisted, curved, flattened, up to 3 inches, stiff but pliable and fragile. Flowers sweet-smelling, yellow with dark red center, up to 3 inches across, blooming summer on mature plants. Fruits small, reddish, covered with flattened spines. Slow growth. USDA Zones 9a-11b, hardy to approximately 20°F.

In the Garden & Collection

• Dramatic Spine Sculpture: Long twisted spines create genuine visual architecture.
• Celestial Texture: White woolly flecks scatter across the epidermis.
• Summer Flower Reward: Large fragrant yellow blooms with red centers.
• Slow-Growing Investment: Rewards patient collectors with years of development.
• Large-Form Presence: More substantial mature size than standard variety.
• Container Culture: Excellent windowsill or greenhouse specimen.

Growing Goat's Horn Cactus Seeds

• Start: Indoors in warm, bright conditions.
• Germination: Surface-sow on well-draining mix; sprouts quickly.
• Temperature: 70-80°F optimal.
• Light: Bright indirect for young plants; full sun once established.
• Zones: USDA 9a-11b, hardy to approximately 20°F.
• Soil: Sharply-draining mix; 60% perlite, 20% peat, 20% compost.
• Sunlight: Full sun to light shade; young plants appreciate protection.
• Water: Water thoroughly when dry, growing season only; dry in winter.
• Handling: Handle gently... spines are stiff but fragile.
• Flowering: Requires 3-4 years maturity; blooms summer.
• Fertilizing: Monthly with cactus fertilizer during active growth.
• Maturity: Slow-growing; large form eventually reaches 4-foot height.

Before You Close This Page

Goat's Horn Cactus, large form Astrophytum capricorne, northern Mexico native. Long twisted grey-brown spines resembling goat horns. White woolly flecks on gray-green body. Fragrant yellow flowers with red centers, summer. Slow-growing, up to 4 feet tall. USDA Zones 9a-11b. Full sun, sharp-draining soil. The horned cactus that mimics wild grasses.