Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Gymnocalycium (jim-no-kal-LISS-ee-um) (Info)
Species: riojense (ree-oh-HEN-see) (Info)
Synonym:Gymnocalycium riojense subsp. riojense
Synonym:Gymnocalycium triacanthum
Category:
Cactus and Succulents
Height:
under 6 in. (15 cm)
Spacing:
9-12 in. (22-30 cm)
12-15 in. (30-38 cm)
Hardiness:
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)
Sun Exposure:
Light Shade
Danger:
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color:
Pale Pink
White/Near White
Cream/Tan
Bloom Time:
Mid Spring
Late Spring/Early Summer
Foliage:
Unknown - Tell us
Other details:
Drought-tolerant; suitable for xeriscaping
Suitable for growing in containers
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 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
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