Perennial · Cistaceae family
Common rock-rose
Helianthemum nummularium
In short a 10-second read
spacing 30 cm
Where to plant and how much to water
Sun, soil and water.
It grows best in full sun, in dry to average soil.
Sun
Soil
Watering
Frost
How much space it takes
Mature size.
The mature plant next to a person (175 cm).
Plant 30 cm apart.
Reaches maturity in about 5–10 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.
Calendar
Through the year.
Months for Central Europe. The line shows the current month.
The year at a glance
Flowers
May–July · yellow, pink, red or white
Planting
container plant: March–May, September–November
Feeding
March–May
Feeding
Nutrition.
Pests and diseases
Common problems and what to do.
The most common problems in Central Europe. Protection is listed from the gentlest option.
No serious pests or diseases
The source lists no significant problems.
Sources (2)
What to combine it with
Same needs, different flowering.
They share the same sun and soil and flower in other months — so the bed flowers for longer.
Frequently asked
Quick answers.
When does common rock-rose flower?
In May–July; the flowers are yellow, pink, red or white.
Does common rock-rose tolerate shade?
No, it needs full sun.
How much space does common rock-rose need?
At maturity 0.25–0.61 m wide and 0.15–0.3 m tall; recommended spacing 30 cm.
Sources (10) Checked 23 October 2026
- missouribotanicalgarden.org
- rhs.org.uk 2
- bamberger-staudengarten-shop.de 2 3
- yardandgarden.extension.iastate.edu
- Invasive plant lists — this species is not on them: Slovakia, Poland, Denmark
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Uses