Ferocactus Species, Biznaga, Cedros Island Barrel Cactus

Ferocactuschrysacanthus

Family
Cactaceae (kak-TAY-see-ee)
Genus
Ferocactus (fer-oh-KAK-tus)
Synonym
Echinocactus chrysacanthus
Echinocactus emoryi var. chrysacanthus
Sun Exposure
Full Sun
Height
24-36 in. (60-90 cm)
Spacing
15-18 in. (38-45 cm)
18-24 in. (45-60 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)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Red
Orange
Bright Yellow
Bloom Time
Late Spring/Early Summer
Mid Summer
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
Properly cleaned, seed can be successfully stored
Regional

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

Phoenix, Arizona(2 reports)

Tucson, Arizona

Bostonia, California

Oceanside, California

San Marino, California

Grenoble, Rhône-Alpes

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Gardener's Notes:

0
positive
2
neutrals
0
negative
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P
Acton, CA (Zone 8b) | May 2005 | neutral

This Ferocactus has golden spines- and a LOT of them.. all thick and twisted.. one of the spiniest of the Ferocacti

X
Phoenix, AZ (Zone 9b) | April 2005 | neutral

The subspecies 'chrysacanthus' has yellow or yellow-orange flowers.
The subspecies 'grandiflorus' has red or red-orange flowers.

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