Strombocactus

Strombocactusdisciformis var. seideli

Family
Cactaceae (kak-TAY-see-ee)
Synonym
Strombocactus disciformis subsp. disciformis
Sun Exposure
Full Sun
Sun to Partial Shade
Height
under 6 in. (15 cm)
6-12 in. (15-30 cm)
Spacing
3-6 in. (7-15 cm)
Hardiness
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
Danger
N/A
Bloom Color
White/Near White
Bloom Time
Mid Spring
Late Spring/Early Summer
Mid Summer
Mid Fall
Late Fall/Early Winter
Other Details
Category
Perennials
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
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
From seed; germinate in a damp paper towel
From seed; germinate in vitro in gelatin, agar or other medium
By grafting
Seed Collecting
Bag seedheads to capture ripening seed
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds
Properly cleaned, seed can be successfully stored
Regional

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Gardener's Notes:

0
positive
1
neutral
0
negative
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C
El Cajon, CA | November 2012 | neutral

This variety of Strombocactus usually gets bigger/taller than the normal form. Its spines are a little stouter and seedlings grow much fa...Read More

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