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Astrophytum hybrid AS - ONZ
(A. asterias x A. myriostigma cv. onzuka)

CACTUS ART
NURSERY

Cultivation and Mail Sale
of Cacti and Succulents.

 


This F1 hybrids usually have 8 ribs  like the female parent; note the fly pattern around each areole..
 

Description: The superb feature of of this hybrid is due to the intersection between the traits of the ancestors. Many of them have inherited by A. asterias the 8 fairly flat ribs and by the "onzuka" the large white dots along with the typical fly pattern around the areoles. The flowers are also very beautiful. This is one of the best but very difficult to obtain hybrids, because A. asterias usually fail to interbreed with A. myriostigma. VERY RARE.. 

Compare with the inverse hybrid A. myriostigma cv. Onzuka  x A. asterias   which is similar but with (usually) only five ribs.
 

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Cultivation is not too difficult in a greenhouse, although grows quite slowly. The plants need  a loose well-drained  mineral soil. They need a good amount of light. Watering can be done weekly during summertime, if the weather is sunny enough, with a little fertilizer added. Kept this way, plants will show a healthy, although slow growth. They are frost hardy to -4 (-10) C
Be careful: The epidermis of this hybrid is harder than in the normal asterias or myriostigma and cracks easily if plants are overwatered.

Propagation: By seeds, remembering that  seedlings dislike strong light and dry conditions  and need to be repotted frequently. Eventually, as they become mature, they attain a maximum size of 8-10 cm (20) cm.  But plants are often grafted to accelerate growth as they would generally take at least a five years to reach maturity on their own, but the grafted plants are typical rather tall growing, compared with plants on their own roots that are usually more flat to the ground.

Photo gallery: Alphabetical listing of Cactus and Succulent pictures published in this site.


Photo gallery Astrophytum


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Family: Cactaceae (Cactus Family)

Scientific name: Astrophytum hybrid AS-ONZ

Origin Garden origin (Nursery produced cultivar)

Conservation status: Listed in CITES appendix 2.

A. asterias x ♂ A. myriostigma cv. Onzuka  

This peculiar plant is the result of crossbreeding  from A. asterias and A. myryostigma and shows some interesting intermediate features of both the parents.

In F1 cactus hybrids the plants usually show a body shape similar to that of the mother plant and an intermediate mix of other characters.
 

 



 

Photo of  Astrophytum hybrids:

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