Gymnocalycium Species, Giant Chin Cactus

Gymnocalyciumsaglionis

Family
Cactaceae (kak-TAY-see-ee)
Genus
Gymnocalycium (jim-no-kal-LISS-ee-um)
Species
saglionis (SAG-lee-oh-nis)
Synonym
Echinocactus saglionis
Gymnocalycium saglionis subsp. saglionis
Gymnocalycium saglionis var. albispinum
Gymnocalycium saglionis var. flavispinum
Gymnocalycium saglionis var. longispinum
Sun Exposure
Full Sun
Sun to Partial Shade
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 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)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Pale Pink
White/Near White
Bloom Time
Mid Spring
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Can be grown as an annual
Bloom Characteristics
Bloom Size
Other details
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
Regional

This plant is said to grow outdoors in the following regions:

Chandler, Arizona

Phoenix, Arizona

Tucson, Arizona

Orange, California

Reseda, California

San Marino, California

Sherman Oaks, California

South Jordan, Utah

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Gardener's Notes:

0
positive
1
neutral
0
negative
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Phoenix, AZ (Zone 9b) | January 2005 | neutral

Of the two subspecies, 'tilcarense' has shorter floral tubes than 'saglionis' and only occurs naturally in the Tilcara, Argentina area....Read More

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