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PlantFiles: Echinopsis
Echinopsis thionantha

Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Echinopsis (ek-in-OP-sis) (Info)
Species: thionantha

Synonym:Echinocactus thionanthus
Synonym:Echinocactus chionanthus
Synonym:Acanthocalycium brevispinum
Synonym:Echinopsis brevispina
Synonym:Acanthocalycium catamarcense

Cactus and Succulents

under 6 in. (15 cm)

3-6 in. (7-15 cm)

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:
Full Sun
Sun to Partial Shade
Light Shade

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

Bloom Color:
Bright Yellow
White/Near White

Bloom Time:
Mid Spring
Late Spring/Early Summer

Unknown - Tell us

Other details:
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
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:

Propagation Methods:
From woody stem 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

Click thumbnail
to view:

By CactusJordi
Thumbnail #1 of Echinopsis thionantha by CactusJordi

By Zaragoza
Thumbnail #2 of Echinopsis thionantha by Zaragoza

By Xenomorf
Thumbnail #3 of Echinopsis thionantha by Xenomorf

By Xenomorf
Thumbnail #4 of Echinopsis thionantha by Xenomorf


No positives
1 neutral
No negatives

Gardeners' Notes:

Neutral Xenomorf On Jan 26, 2005, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

Flowers range from bright yellow to red to white and are bell-shaped The floral tubes have brown-white hairs /bristles and dark spine-tipped scales.

Additional synonyms: Acanthocalycium thionanthum var.minutum, Acanthocalycium thionanthum, Acanthocalycium griseum, Acanthocalycium minutum, Acanthocalycium chionanthum, Echinopsis chionantha, Echinocactus thionanthus, Lobivia thionantha, Lobivia chionantha


This plant has been said to grow in the following regions:

Phoenix, Arizona

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