trefle.io · Taken May 15, 2018 by jose (cc-by-sa)
Cistaceae
Common rock-rose
Helianthemum nummularium
Also known as Helianthemum nummularium subsp. sepyllifolium, Helianthemum angustipetalum var. hirsutum, Helianthemum roseum var. niveum, Helianthemum chamaecistus subsp. nummularium
Native Plants · Rock-Garden · Drought-Tolerant · Mediterranean · Xeriscaping · Yellow-Flowers · Low-Water · Perennial · Sunny
Common rock-rose is a drought-tolerant Mediterranean perennial that thrives in sunny, well-draining locations. Water sparingly once established and avoid heavy, wet soils that can cause root rot. This low-maintenance plant produces cheerful yellow flowers and is perfect for rock gardens and xeriscaping.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water sparingly, allow soil to dry completely between waterings · Every 10-14 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7–7.5
- Temperature
- -20°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 5a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 15 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Albania, Algeria, Austria, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Central European Rus, Corse, Czechoslovakia, Denmark, East Aegean Is., East European Russia, Finland, France, Germany, Great Britain, Greece, Hungary
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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