Where it grows:
Ferocactus glaucescens in its natural form is native to central Mexico, but this is a nursery produced cultivar.
Special features:
Ferocactus glaucescens f. inermis is the spineless or partially spineless form of this species. It is blue-green in colour and somewhat hairy or wooly at the growth point. Produces yellow flowers.
Young plants or offsets may have some spines presents, but mature plants tend to be completely spineless (or ‘nudum’).
Care Guide:
As with most cacti in the Ferocactus genus, these plants prefer receiving plenty of sunlight. Full morning sun will accentuate their colours well. If kept in a greenhouse, it should not be under more than 40% shadecloth. They like a well-drained, gritty soil mix. Give them plentiful water in the warmer months, but do not water in winter. Bottom watering is advisable, as any water that gets stuck on the contorted stem may cause rot.
Growing season:
Spring and summer.
Propagation:
Offsets and seeds.