Acanthocalycium spiniflorum sp. P91
Nord Cordoba, Argentina
flowers. Very nice plant.
Solitary to slowly clumping.
Stem: Globular to elongate up to 60 cm tall, 15 cm in diameter.
Ribs: Numerous 16 to 20 acute;
Spines: 10 to 20 per areole, dense, thin, long, curved
greyish-pink or greyish-honey-coloured.
Flowers: A. spiniflorus flowers range from pink to
white (4 cm to 7,5 cm in diameter) appear during late spring and summer,
the form “violaciflorus” has lilac flowers. It starts
blooming at around 6cm in diameter.
Cultivation: It is a summer grower species
that offers no cultivation difficulties. Water regularly
in summer (but do not overwater ) needs good drainage and very porous,
keep rather dry in winter.
Feed with a high potassium
fertilizer in summer.
It is quite frost resistant if kept dry (hardy to -12° C or less )
Need a very bright exposure, full sun
is indispensable to keep plant compact with strong spines.
Propagation: Direct sow after last frost
as it seldom produces offsets.
Photo of conspecific taxa, varieties, forms and
cultivars of plants belonging to the