Notocactus uebelmannianus f. flaviflorus | Brazilian sun crown
€10,60
🌱 Morphology
Crowned by the sun... Solitary cactus, rarely branching from the base, with a globose and depressed body that may become somewhat more cylindrical with age. It reaches approximately 12 cm in height and up to 17 cm in diameter, with a dark green, glossy epidermis. It features 12–16 broad, rounded, and strongly tuberculate ribs, whose protrusions project laterally with the appearance of small chins. The areoles, initially covered in white wool, later become bare. The spines are generally thin, flexible, and appressed to the body: about 6 radial ones, whitish or grayish, up to 3 cm long, frequently with one directed downward. The central spine is usually absent or not clearly differentiated.
🌍 Distribution, habitat and family
Endemic to Rio Grande do Sul, Brazil, especially in the Caçapava do Sul and Guaritas region. It grows on flat rocky terrain and outcrops within the open landscapes of the Pampas region. It belongs to the Cactaceae family, Cactoideae subfamily, and Notocacteae tribe.
❄️ Temperature · USDA Zone 9b
It tolerates minimum temperatures of up to −4 ºC under dry conditions and with well-acclimated specimens. During winter, it is recommended to keep it dry and avoid the combination of low temperatures and persistent humidity.
☀️ Lighting
It requires intense lighting to maintain its compact habit and encourage abundant flowering. It can be grown in full sun after progressive acclimation, although in very hot climates, it may appreciate light protection during midday hours. As a guideline during active growth, a DLI PAR of 20–30 mol·m⁻²·day⁻¹ is recommended.
💧 Growth cycle and watering
Winter rest. During the cold months, watering is significantly reduced, and the substrate is kept dry. From spring until the end of summer, it can be watered abundantly, allowing the substrate to dry out completely between waterings. It is somewhat more demanding of water during the active period than many cacti, but drainage must be excellent to avoid root problems.
🌸 Flowering
This is one of its most spectacular features. It produces apical flowers about 5 cm in diameter, shiny and silky, in cream-yellow tones. The flowers appear forming a striking ring around the apex and contrast sharply with the dark green epidermis. The stigma is reddish and the stamens provide a golden center. In cultivation, it can begin to flower when relatively young.
🌿 Nutrition
During the active growth period, a fertilizer with high assimilable calcium content 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 high-tech square pot with substrate activated with mycorrhizal fungi and biofungicides.
📏 Gourmet xerophyte in 10x10 cm and 11.5x11.5 cm pot.
* As this is an online purchase, the appearance of the sent specimen may vary slightly from the product image. The photo description specifies the plant's measurements, but these may also vary slightly because, after all, it is a living being! Each of the plants at Desert CITY has unique characteristics.
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