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  Echinocactus grusonii "intermedius" CACTUS ART
NURSERY

Cultivation and Mail Sale
of Cacti and Succulents.


The rare intermediate spine form (grafted shoot)
 

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The apex is concealed by creamy coloured wool .

A young seedling with juvenile tuberculate ribs.
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Family: Cactaceae (Cactus Family)

Scientific Name: Echinocactus grusonii forma intermedia

Origin Garden origin (Nursery produced cultivar)

Conservation status: Listed in CITES appendix 2.

 

Description: This plant differs from the common Golden barrel cactus (Echinocactus grusonii) for the spines that  are stout but intermediate in length between the standard from and the short spined type "brevispinus" . Except for the spines it is identical in shape and size to the standard species.  It has a single slowly growing globe-shaped stem that became elongated (barrel-shaped) in maturity, up to 90 cm (180 cm) in height and spread. This stem is pale green and heavily ribbed with numerous areoles sprouting radial, yellow spines. They normally offset with advanced age and a few multiples occur even at small sizes.
The flowers are produced from end of spring to summer only on larger mature specimens receiving enough full sun. Flower are diurnal,  vivid yellow (4-5 cm wide) and form a circular ring at the top of the plant, but are not very visible being small in relation with the size of the barrel, and lost into the creamy coloured wool at the plant apex.


A spine cluster: spines are shorter and stronger than the standard type.
 

 


Culture: Frost tender but resistant to very dry conditions, Cold hardiness increases with improved drainage, so keep plants as dry as possible in winter. They grow best in well-drained soil and in a position with full sun, which will help to maintain the lustre of the spines and longevity of the flowers. Provide the plant with extremely well-drained soils, as the plants are subject to crown and soft rot if they remain too moist. Besides, it performs wonderfully in containers, Container media should be coarse as well. Young plants are prone to mealy bug and red spider mite.
Propagation:
Propagate from cuttings, graft or seed.

Photo of conspecific taxa, varieties, forms and cultivars of
Echinocactus grusonii:

 

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

Photo gallery ECHINOCACTUS

Home | E-mail | Plant files | Mail Sale Catalogue | Links | Information | Search

All the information and photos in cactus art file are now available also in the new the Enciclopedia of Cacti. We hope you find this new site informative and useful.