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How to Grow and Care for Ferocactus


Ferocactus is a genus of large barrel-shaped cacti, mostly with large spines and small flowers. It begins with a spherical shape when young and eventually becomes more cylindrical, slowly reaching from 2 to 10 feet (0.6 to 3 m) tall and 1.5 to 3 feet (45 to 90 cm) in diameter, depending on the species. The species are found in the southwestern United States and northwestern Mexico. It grows best in USDA plant hardiness zones 9 through 10.

Growing Conditions

Light: Choose a location that receives direct sun during all or most of the day. Because Ferocactus eventually leans into the sun instead of growing precisely upright, and because it has extremely sharp thorns, place it where people will not brush into it accidentally.
Soil: Plant your cactus in early spring before new roots begin to form. The roots may appear dry, but that is typical before new growth begins. Dig a hole deep enough for the plant's roots and amend it as needed to provide fast-draining soil. A good soil mixture includes 10 percent native soil, 45 percent washed sand or pumice, and 45 percent compost. Ferocactus thrives in poor and arid soil.
Water the cactus at the time of planting to anchor it into the soil. Water again only if the weather in your area is unseasonably dry and if normal spring or winter rainfall doesn't occur.

Grow and Care Ferocactus (Ferocactus latispinus)

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General Care

Water after it is established only during unseasonable drought conditions. Otherwise, rainfall provides the only irrigation necessary. Ferocactus needs a dormant period with dry soil during the winter.

Drape Ferocactus with burlap or other fabric if a heavy frost is predicted in your area, as it is sensitive and could be damaged by cold temperatures.

Mulch your cactus with decomposed granite or small pebbles for decorative purposes to mimic the plant's native habitat. Ferocactus is naturally fire-resistance, and mulching with stone increases the fire-resistance of your entire landscape.

Ferocactus thrives with no fertilizer.



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