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Helianthemum nummularium

Common rock rose

Garden

Wishlist

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Features

  • BloomsMay to September
  • Height0.05m to 0.3m
  • Spread0.2m to 0.9m
  • Growth HabitLow spreading
  • Flower ColourYellow-orange, white-green pink, red
  • Leaf ColourDeep grey-green

Description

Helianthemum nummularium (Common rock rose). This plant is often found in the wild in Northern Europe. STEM: Many, woody below, low-growing or angled upwards. ROOT: Thick, woody stock, vertical tap-root. HAIRS: Sparse or short; dense, whitish beneath leaves. STIPULES: Present, narrowly spear-shaped. LEAF-STALK: Much shorter than blade. BRACTS: Narrowly spear-shaped. FLOWER STALK: About equaling flower. SEPALS: 5, 2 slender, 3 oval. PETALS: 5, equal, oval, crumpled, soon falling. STAMENS: Numerous, moving apart when touched. STIGMA: 1, 3-lobed on S-shaped style. OVARY: 1, 1-celled SEEDS: Many, egg-shaped.

Characteristics

Woody perennial, Evergreen, Fragrant

Other common names

Rock rose

Origin

Britain

Interest and use

Walls, rock garden, ground cover Summer interest.

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Needs

  • LightFull sun
  • HardinessHardy (min -10°C)
  • SoilClay, Well drained, Sandy, Chalky
  • Soil pH7.0 to 9.0
  • WaterSemi-moist

Cultivation

Cut back lightly after flowering.

Propagation

Semi-ripe cuttings in early summer.

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