Blue Barrel / Blue Barrel Cactus – Desert Horizon Nursery

Blue Barrel

Ferocactus glaucescens
Categories:
Cacti & Succulents  ·  
Barrel & Globe Cactus
Light
Full sun (afternoon shade in low desert)
Water
Low water; water deeply but infrequently during warm weather, allowing soil to dry completely between waterings. Keep nearly dry in winter.
Size
1.5-2 ft tall × 2-3 ft wide
Habit
Barrel/globular cactus
Toxicity
Non-toxic
Description
A rounded Mexican barrel cactus with blue-gray ribs and golden-yellow spines, developing a short cylindrical form with age.
Bloom Time
Spring to early summer
Deciduous / Evergreen
Evergreen
Special Features
Architectural Form, Colorful Foliage, Drought Tolerant, Thorny / Spiny
Growth Rate
Slow
Growth Habit
Barrel/globular cactus
Mature Size
1.5-2 ft tall × 2-3 ft wide
Flower Color
Yellow
Foliage Color
Blue-green
Landscape Use
Border / Bed, Cactus / Succulent Garden, Container / Patio, Desert / Xeriscape
Garden Style
Container / Patio, Desert / Xeriscape
Soil
Amended / Rich, Moist Soil, Sandy / Rocky, Well-Drained
Companion Plants
Golden barrel cactus, Parry's agave, Red yucca, Santa Rita prickly pear
Non-toxic
Non-toxic
Care Instructions

Light: Full sun to light shade; afternoon shade is beneficial in Phoenix, especially for young plants. Acclimate gradually to direct sun.

Water: Low water; water deeply but infrequently during warm weather, allowing soil to dry completely between waterings. Keep nearly dry in winter.

Soil: Very well-drained, gritty or gravelly soil. Use cactus mix amended with pumice for containers; avoid moisture-retentive soil.

Mature size: Typically 1–2 feet tall and 1–2 feet wide; old, offsetting specimens can form wider clumps.

Bloom: Yellow flowers appear around the crown in spring to early summer once plants reach flowering size.

Evergreen / deciduous: Evergreen succulent.

Growth rate: Slow.