Ferocactus (Ferocactus macrodiscus)

Care, watering, light and tips for Ferocactus on Floravia.

Ferocactus

Quick facts

About Ferocactus

Ferocactus macrodiscus, known as the 'viznaga caballona', is a flattened globular cactus that can grow quite large over time, developing pronounced ribs and robust spines. Its unique shape and magenta or yellow flowers that bloom at the apex make it a majestic specimen for desert gardens, rockeries, or as a focal plant in large pots.

Native range

Central Mexico

Care tips

It requires full sun for optimal growth and abundant flowering. Watering should be scarce, only when the substrate is completely dry in spring and summer, and almost none in winter to prevent rot. Use a very well-draining substrate specific for cacti. A common mistake is overwatering, which is the main cause of death for this species.

How to save a dying Ferocactus

Warning signs
Softening body, dark spots, basal rot, excessive wrinkling without recovery after watering.
First aid
Stop watering, check roots for rot, cut soft parts with sterile tool. Let wound dry.
What kills it
Overwatering, especially in winter or with poor draining soil, causes rapid rot.
Can it be saved?
Yes, if rot hasn't reached the apex. Requires patience and dry conditions.

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