Harrisia Species, Martin Applecactus, Moon Cactus, Moonlight Cactus, Snake Cactus
Harrisiamartinii

Synonym:Cereus martinii

Synonym:Cereus perviridis

Synonym:Eriocereus martinii

Synonym:Eriocereus perviridis

Category
Cactus and Succulents

Water Requirements

Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade

Foliage

Foliage Color

Height
10-12 ft. (3-3.6 m)

Spacing
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)

Hardiness
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow

Danger
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color
White/Near White

Bloom Characteristics

Bloom Size

Bloom Time
Late Winter/Early Spring
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall

Other details
May be a noxious weed or invasive

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information
Non-patented

Propagation Methods
From woody stem cuttings
From softwood cuttings
Allow cut surface to callous over before planting
From seed; direct sow after last frost

Seed Collecting
Allow unblemished fruit to ripen; clean and dry seeds
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds
Properly cleaned, seed can be successfully stored