Helianthemum nummularium
Rock Rose
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Rock Rose (Helianthemum nummularium) - Description
Very heavy bloomer that lasts from May through July. Unfortunately the blooms only last a single day or so, which makes these bright flowers unsuitable as cut flowers.
Rock Rose (Helianthemum nummularium) - Blooming
In July, prune back some of the flowers and floral buds to induce a second bout of blooms in August and September.
Rock Rose (Helianthemum nummularium) - Growth
Rock roses are short lived plants that need full sun and grow in rocky ground or in large containers. Let them tumble over rocks for good effect.
Rock Rose (Helianthemum nummularium) - Planting
If used as ground cover, place plants 2-3' apart. If growing cultivars or hybrids, use cuttings or remove rooted parts from established plants, otherwise just plant seeds.
Rock Rose (Helianthemum nummularium) - Pest
Uncommon.
Rock Rose (Helianthemum nummularium) - Interesting facts
Helianthemum are native to Asia, Europe, North and South America, and North Africa. Species are found mainly in alpine meadows and open srublands.
Rock Rose (Helianthemum nummularium) - Soil and irrigation
Water moderately in the summer, but keep dry in the winter. The free-draining soil should be kept gritty. Helianthemum does best in neutral to alkaline, moderately fertile soil.
