A genus that includes some cacti from South America. They usually have a globular aspect and tend to produce numerous suckers; the stem is bright green, with numerous ribs; at the base it carries white thorns, on the rest of the stem the thorns are yellowish or brown. In summer, it produces numerous white, pink or red flowers.
Exposure: sulcorebutie need very sunny locations, even if they develop without problems in places where they have a few hours of sunshine and other hours of shade. In winter, they should be placed in cold greenhouses, while tolerating short periods of frost. watering: from March to October, water regularly, letting the soil dry well between one watering and the other. In winter, stop watering, remembering that a dry and cold winter promotes spring flowering.
During the vegetative period, provide cacti fertilizer with the water of the watering every 10-15 days.
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Sulcorebutia arenacea: Reproduction
Soil: these cacti prefer loose soils, very well drained, not particularly rich of organic matter; use some universal soil lightened with sand or with material with a bigger granulometry, for increasing the drainage.Multiplication: the propagation can happen by seed, sowing in a mixture of peat and sand in equal parts in spring, which is to be kept constantly humid till the complete germination and in a not too hot place.
In spring and summer it is possible to detach the suckers, which are to be repotted at once individually. parasites and diseases: the floccose cochineal is a rather insidious parasite as it often hides at the base of the thorns and is difficult to identify.