Growing Common houseleek in a pot

Common houseleek is famously undemanding. Once established, it needs almost no intervention and thrives on neglect. Watering is rarely necessary in temperate climates; natural rainfall is usually sufficient. The fleshy leaves store water, and the plant is adapted to drought. Water only during prolonged dry spells in the first few weeks after planting, and even then very sparingly. Overwatering or sitting in damp soil is the main cause of rot, so err on the side of dryness. Feeding is not required. Houseleeks grow naturally on poor, rocky ground and actually prefer lean conditions. Fertiliser encourages soft, lush growth that is prone to rot and reduces the plant's hardiness and characteristic compact form. The database specifies no feeding months, and you should follow that guidance—don't feed at all. Houseleeks are evergreen and fully hardy to zone 3, so they need no winter protection in temperate Europe. The rosettes remain attractive year-round, often taking on red or purple tints in cold weather. They tolerate frost, snow, and exposure without damage. Pests are uncommon. Vine weevil larvae occasionally chew roots, causing rosettes to collapse; if you suspect this, lift affected plants, destroy larvae, and replant healthy offsets in fresh grit. Aphids may cluster on flower stalks in summer but rarely cause serious harm. Rot caused by poor drainage or overhead watering is the main issue—ensure water drains freely and avoid wetting rosettes when watering nearby plants. Mulching is unnecessary and undesirable, as organic mulch holds moisture against the base of rosettes. A top-dressing of fine gravel improves appearance and drainage but isn't essential. Maintenance level is genuinely low—an annual tidy and occasional division are all that's needed.