Echinocactus grusonii var. albispinus


-It is commonly called White barrel cactus, White ball cactus, Mother-in-law’s-seat, Mother-in-law’s-cushion.


-E. grusonii var. albispinus is a nursery produced cultivar.


-Echinocactus grusonii var. albispinus is very similar to E. grusonii, but its spines are completely white instead of yellow: older spines tend to become brown-ish with sun esposure.  Its globe-shaped stem become elongated in maturity (up to 90 cm). The stem is pale green and ribbed. When receiving enough sunlight, plants will bloom (in summer), producing vivid yellow flowers.


-As E. grusonii, it is an easy plant to grow. It needs rich, well drained soil, full sun exposition. Repot every other year to provide fresh soil, after repotting do not water for a week. It needs plenty of water during the summer season (growing season), but do not overwater it: remember to not wet the body of the plant while it in sunlight, to prevent sun burns and scars. Keep almost dry in winter. Despite needing full sun, it can tolerate half shade, too. It can tolerate short frost periods, but requires frost protection for safe cultivation. Healthy plants will start blooming when they reach the diameter of 40-50 cm.


-Propagation by seeds or cuttings.


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