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Astrophytum myriostigma cv. Onzuka Hakuun

Family: CACTACEAE · Cultivar of Astrophytum myriostigma

Description

This cultivar only vary from the typical A. myriostigma for the larger white flecks that condense forming characteristic cloud-like patches. However it is quite variable regarding the density and extension of the white patches.

Stem: Dimension 22-40 cm tall, 5-10 cm in diameter.

Ribs: Usually 5.

Flowers: Like those of A. myriostigma, pale-yellow, silk-shining.

Blooming season: Spring to summer.

Origin and Habitat

Japan, Garden origin (Nursery produced cultivar)

Cultivation and Propagation

Although regarded as a choice and difficult plant in cultivation it is relatively easy to grow. It is sometime seen as a grafted plant but grows very well on its own roots too. Use mineral well permeable substratum with little organic matter (peat, humus). Water sparingly from March till October and keep perfectly dry in winter at temperatures from 5 to 15 degrees centigrade. (but it is Hardy to -7°C for short periods) In the rest period no high atmospheric humidity!! Sun Exposure: Light shade to full sun.

Propagation: Almost exclusively by seed. Plants are sometimes grafted onto column-shaped cacti.