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Frailea castanea

Frailea castanea is a diminutive cactus native to South America, characterized by its chocolate brown or dark reddish-green body and sulphur yellow flowers. It has a unique ability to produce seeds without opening its flowers and requires careful watering.

Frailea schilinzkyana

Frailea schilinzkyana is a small cactus native to Brazil, known for its pale to bright yellow flowers. It thrives in rich, porous soil and requires dry periods between waterings. This drought-tolerant plant enjoys full sun and can appear nearly black in bright light. It has a unique ability to retract under the ground during dry seasons, making it a fascinating addition to cactus collections.

Frailea uhligiana

Frailea buenekeri 'Densispina'

This short cactus from Brazil grows up to 1 cm in height and produces yellow flowers in spring and summer. It requires mineral-free water and a well-draining cactus soil mix, developing best in full sunlight. It is hardy in zone 10 and can be propagated by seeds.

Frailea buenekeri

Frailea buenekeri is a small cactus that prefers rich, porous soil with good drainage. It requires more water than most cacti and thrives in cool, dry winter conditions. This plant produces large yellow flowers and enjoys full sun, retracting under the ground during dry seasons.