When to plant Rock rose?

Zonneroosje thrives in full sun and free-draining soil, making it ideal for rock gardens, gravel beds, sunny banks, and the front of borders. It tolerates sandy, loamy, and chalky soils but demands excellent drainage—waterlogged conditions will quickly kill it. If your soil is heavy clay, work in plenty of grit or sharp sand before planting, or grow it in a raised bed or rockery where water drains away freely. Plant zonneroosje in March, April, or May for spring planting, or in September and October for autumn planting. Autumn planting allows roots to establish over winter, but spring planting works well in colder or wetter gardens. Space plants 40 cm apart to allow for their eventual spread of 30–50 cm; they will form low, spreading mats over time. Dig a planting hole slightly larger than the root ball and set the plant at the same depth it was growing in its pot. Firm the soil gently around the roots and water in well to settle the soil, even though zonneroosje has low water needs once established. On heavy soils, consider planting on a slight mound to improve drainage around the crown. After planting, apply a thin layer of grit or gravel mulch around the base. This keeps the foliage dry, suppresses weeds, and mimics the plant's natural Mediterranean habitat. Avoid organic mulches like compost or bark, which retain moisture and can encourage rot. Water occasionally during the first few weeks if the weather is dry, but reduce watering once the plant is established. Zonneroosje is drought-tolerant and resents prolonged wet conditions.