Astrophytum asterias CITES | Star Cactus
€26,50
🌱 Morphology
The original botanical species is a small, solitary cactus with a globose to hemispherical, very flattened body, which generally reaches about 5–10 cm in height and 6–15 cm in diameter. It normally features 8 ribs, although specimens with 6–10 can occur, which are very low, wide, and rounded. The epidermis is grayish-green, shiny, and speckled with small clusters of white trichomes. The areoles are large, circular, and woolly, arranged regularly along the ribs, and lack spines. During periods of extreme drought, it can remain almost flush with the ground, making it very difficult to locate.
🌍 Distribution, habitat, and family
Its natural distribution extends through southern Texas, in the United States, and the Mexican states of Nuevo León and Tamaulipas. It mainly inhabits the Tamaulipan thornscrub, on flat terrain or gentle slopes, on clay, silty, or gravelly soils, often calcareous or with a certain level of salinity. It grows among sparse vegetation and can temporarily withstand flooding of the terrain during the rainy season. It belongs to the Cactaceae family.
❄️ Temperature — USDA Zone 9a–11b
It tolerates minimum temperatures of up to −7 ºC if it remains completely dry and is properly acclimated. During the winter, it is recommended to keep it dormant and with the substrate dry.
☀️ Lighting
It needs very intense lighting during active growth. It tolerates direct sun, although its low and practically flat body remains completely exposed to radiation, so in climates with very intense summers, it may appreciate slight protection during the hours of maximum insolation. An approximate target of 18–25 mol/m²/day of DLI PAR promotes compact growth and good expression of the epidermis and trichomes.
💧 Growth cycle and watering
Winter dormancy. Its growth is concentrated mainly from spring to the end of summer. During the active period, it is recommended to water abundantly and allow the substrate to dry completely before the next watering. In summer, it can respond especially well to water inputs associated with rainfall in its natural habitat, even tolerating occasional periods of humidity, provided there is subsequent complete drying. In winter, it should be kept practically dry, especially at low temperatures.
🌸 Flowering
It produces large flowers in relation to the size of the body, about 3–5 cm in diameter, of a bright yellow color with a reddish or orange throat. They are diurnal and appear in the youngest areoles of the apical zone. In its habitat, it flowers mainly between March and May, with occasional blooms after summer rains; in Madrid, flowering occurs mainly between May and July.
🌿 Nutrition
During the active growth period, a fertilizer with a high content of assimilable calcium and low nitrogen levels, such as Desert CHOICE® Cactaceae, is recommended, applied once a month when watering. Before flowering, it can be supplemented with Desert CHOICE® Flowering.
This is an inimitable xerophyte grown in Madrid in a technological square pot and with substrate activated with mycorrhizal fungi and biofungicides.
. Ideal for children No spines
Cactus with CITES I certificate.
Xerophyte in a 8 x 8 x 7 cm black pot.
Approximate plant height: 3 cm.
Approximate plant width: 5 cm.

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