Ferocactus emoryi

Ferocactus emoryi

Family: Cactaceae
Common Name: Emory barrel
Origin: Native to the lower elevations of northwestern Mexico and part of southern Arizona.
Description: Ferocactus emoryi is a green barrel-shaped cactus with a spherical stem that reaches 4-8 feet (1.2-2.5 m) tall. Cacti possess 15-30 ribs with tubercles, a strong central spine, and numerous reddish-white radial spines. From mid-summer to early fall, yellow, funnel-shaped flowers will be produced, followed by ovoidal fruits.

Interesting Features:
- Ferocactus emoryi requires very little maintenance, and is an excellent choice for beginners and dry landscapes.
- Nectar is produced at the top of the cactus that is used to feed the territorial ants that live at its base. In return, the ants protect the cacti from other insect pests, and genetic diversity of the species is increased.
Uses: In the past, the Seri people of Sonora have used Ferocactus emoryi as a source of food and medicine.

Cultivation and Care:

Watering: Low
- Water after transplanting, and then only when the soil becomes dry. Additionally, be careful to avoid direct contact with the plant when watering, to prevent causing sunburn.
Soil: Prefers alkaline, well-draining soil with a pH between 6.1-7.8.
Lighting: Because bright light is required for this cacti to thrive, provide as much sun as possible.
Propagation: F. emoryi can only be propagated from seed, which should be collected from overripe fruits. If sowing outside, plant after the last frost.
Cold Tolerance: 20°F, USDA hardiness zones 9a to 11b.
Special Accommodations: Although the Emory barrel is tolerant of light frosts, cacti should be protected when temperatures fall below 50°F. Additionally, because of the species' sharp spines, take care when handling, and allow ample spacing along walkways.

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