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Ferocactus Species, Barrel Cactus

Ferocactusrobustus

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Ferocactus robustus by palmbob
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Family
Cactaceae (kak-TAY-see-ee)
Info
Genus
Ferocactus (fer-oh-KAK-tus)
Info
Species
robustus (roh-BUS-tus)
Info
Synonym
Echinocactus robustus
Sun Exposure
Full Sun
Foliage

Unknown - Tell us

Height
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Spacing
24-36 in. (60-90 cm)
36-48 in. (90-120 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)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color

Unknown - Tell us

Where to Grow

Unknown - Tell us

Bloom Characteristics

Unknown - Tell us

Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

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
By dividing rhizomes, tubers, corms or bulbs (including offsets)
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
Regional

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

Phoenix, Arizona

Mountain View, California

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Gardener's Notes:

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positive
1
neutral
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negative
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Xenomorf
Phoenix, AZ (Zone 9b) | April 2005 | positive

A robust grower with clumps/clusters reaching over three feet high and 16 feet wide.

P
P
palmbob
Acton, CA (Zone 8b) | April 2004 | neutral

Smaller Ferocactus and an aggressive clumper with 'barrels' up to 8" in diameter. From S Mexico. Not sure what is so robust about it.

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