The group of houseleeks (Sempervivum) comes from the family of succulent plants (Crassulaceae) and occurs in a very large variety of shapes, colors and varieties. The extremely frugal plants originally come from the mountains such as the Alps, the Caucasus and the Balkans. As mountain plants, outdoor succulents are more than happy with a bit of poor soil when it comes to substrate.
Houseleek hardly needs any soil
Soil should be as lean as possible
Like so many mountain plants, houseleeks are quickly overwhelmed with nutrient-rich soil. The plants need lean, very permeable soil. If you want to cultivate Semperviva in the rock garden or in various planters, you should either mix lean soil yourself or use commercially available cactus or succulent soil. To mix the substrate, take standard potting soil and mix it with about a third of sand or expanded clay.(19.73€) Otherwise, almost all houseleek thrive in both acidic and calcareous soil.
tips
Water drainage is particularly important for houseleeks cultivated in tubs - the plants need dryness and do not tolerate moisture (especially waterlogging) at all. Good drainage is therefore essential.