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Astrophytum myriostigma cv. ONZUKA + HAKKUN
Beautiful cultivar which combine the large flecks of "ONZUKA"
with the characteristic cloud-like white patches of "HAKUUN". The
density of white patches is indeed very variable.
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.
Cultivation:
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.
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Cultivation
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