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 Acanthocalycium spiniflorum is a cactus species that is blooming  during all Spring and Summer 

 Acanthocalycium spiniflorum (K. Schumann) Backeberg 1935

Etymology: The taxon name comes from Greek akantha (meaning prickly) and kalyx (meaning buds), which refers to the spines on the floral tubes.

Origin: Argentina (Cordoba)

Conservation status: Listed in CITES appendix 2.

Synonyms: Echinocatus spiniflorum K. Schumann 1903; Echinopsis spiniflora (K. Schumann) A. Berger 1929; Acanthocalycium klimpelianum; Echinopsis violacea Werdermann 1931; Acanthocalycium violaceum (Werdermann) Backeberg 1935; Lobivia spiniflora; Acanthocalycium spiniflorum (K.Schum.) Backeb.forma violaceum (Werderm.) Donald

 

This nice plant from Argentina is a long time favorite among collectors. Easy in culture and ready blooming plant, it produces it's pink flowers reliably over the summer.

 Prickly Acanthocalycium spiniflorum have long, curved  grayish-pink or grayish-honey-colored spines, 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 6 cm in diameter

Acanthocalycium spiniflorum is a nice free-flowering species from Argentina mountains.
Acanthocalycium spiniflorum for sale Ø10 cm Price $11.00 Out of stock

 Acanthocalycium spiniflorum is a nice cactus plant for sale Is favorite among collectors. Easy in culture and ready to bloom from spring to the late summer Acanthocalycium spiniflorum opens 5-10 big lilac flowers at a time (4 cm to 7.5 cm in diameter). 
It starts blooming at around 6cm in diameter.

 This species is easy in culture cactus and usually recommended for beginners.

 Acanthocalycium spiniflorum is a nice free-flowering species from Argentina mountains.  It repeatedly blooms all summer long, often with more than 10 flowers open per time.

This species is easy in culture and usually recommended for beginners.

Description: Solitary to slowly clumping

Stem:. Globular to elongate up to 60 cm tall, 15 cm in diameter.

Roots: fibrous. 

Ribs: Numerous 16 to 20 acute; 

Areoles: each areola includes 5 to 10 spikes radial brown more or less dark, usually central pin circle one longer.

Spines: 10 to 20 per areole, dense, thin, long, curved  grayish-pink or grayish-honey-colored.

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.

Bloom time:.late spring to end of summer

Sun Exposure: Full Sun. Need a very bright exposure, full sun is indispensable to keep plant compact with strong spines.

Recommended Temperature Zone: USDA Zone 9b - USDA Zone 11

Frost Tolerance: It is quite frost resistant if kept dry (hardy to  -12° C or less for very short periods).

Heat Tolerance: Ideal temperature 24-26 °C, 75.2 - 78.8 - F

Minimum Temperature: 5 °C, 41 F

Soil pH requirements: 6.1 to 7.8. It needs good drainage and very porous substrate. Draining a mixture vermiculite, sand and compost suits him very well.

Watering Needs: Water regularly in summer (but do not over-water ).  Wait for the well draining soil mixture to be rather dry before watering again. Keep rather dry in winter. 

Cultivation: It is a summer grower species that offers no cultivation difficulties.  Water regularly in summer (but do not over water) 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.



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