{"product_id":"mammillaria-petrophila","title":"Mammillaria microhelia f. rosa | Little sun pincushion cactus. pink flower","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eMammillaria microhelia Werderm. · \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🌱 \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMorphology\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e  Small, slow-growing Mammillaria, initially globose and later \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecylindrical\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, solitary or forming small clusters. It can reach about 15–25 cm in height and 3–6 cm in diameter. The tubercles are conical and rounded, with naked or slightly woolly axils. The areoles are armed with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e30–50 white or yellowish radial spines\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, thin and arranged like sun rays, usually accompanied by 1–4 more robust, reddish or brown central spines, up to 1 cm long.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🌍 \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDistribution, habitat and family\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA Mexican species with a very restricted distribution in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eQuerétaro\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, where it grows between \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2,000 and 2,600 m\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e in altitude. It lives on volcanic rock, in semi-arid scrubland and in submontane deciduous oak forests. It is, therefore, a mountain Mammillaria rather than a hot desert species. It belongs to the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCactaceae\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e family, Cactoideae subfamily and Cacteae tribe.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e❄️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eTemperature · USDA Zone 9a\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eIt tolerates minimum temperatures of up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e−5 ºC\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e when dry and with well-acclimatized specimens. A completely dry rest period notably increases its cold resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e☀️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLighting\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eIt needs plenty of light and appreciates \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edirect sun\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, which promotes denser spination and abundant flowering. During periods of extreme heat, it may benefit from light shade during the central hours. A DLI PAR of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20–30 mol·m⁻²·day⁻¹\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is recommended during active growth.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e💧 \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGrowth cycle and watering\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eWinter rest.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep completely dry during the winter. In spring and summer, water deeply only when the substrate is completely dry, allowing it to drain quickly. It is especially sensitive to excess moisture at the roots; ventilation and drainage are essential.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🌸 \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFlowering\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eIt blooms from the first years of cultivation.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The flowers appear mainly in spring, although in cultivation they can last for a good part of the warm season. They are small, bell-shaped, in shades of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecream, greenish-yellow, pink or magenta\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and can form a delicate crown around the apex. It is pollinated by insects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🌿 \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNutrition\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eDuring the active growth period, a fertilizer with a high content of assimilable calcium and low nitrogen levels, such as \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDesert CHOICE® Cactaceae\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, is recommended, applied once a month when watering. Before flowering, it can be supplemented with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDesert CHOICE® Flowering\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis is an inimitable xerophyte grown in Madrid in a technological square pot with the substrate activated with mycorrhizal fungi and biofungicides.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e8x8cm pot\u003c\/strong\u003e\u003c\/p\u003e","brand":"DesertSTORE.es","offers":[{"title":"Default Title","offer_id":59141212471631,"sku":null,"price":15.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0559\/9818\/5628\/files\/7AB8B1E1-29B4-467E-B09F-ABDEB5B35553.jpg?v=1792585364","url":"https:\/\/desertstore.es\/en\/products\/mammillaria-petrophila","provider":"DesertSTORE.es","version":"1.0","type":"link"}