Rock Rose 'Belgravia Rose' (Helianthemum nummularium Belgravia Rose)

Rock Rose 'Belgravia Rose'

Helianthemum nummularium Belgravia Rose

Its ruffled rose-pink blooms glow in summer sun, a cheerful low-growing groundcover. Evergreen subshrub; common name: Rock Rose 'Belgravia Rose'.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Requires full sun for optimal blooming; tolerates partial shade with reduced flower production
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Watering Drought-tolerant once established; water deeply and allow soil to dry completely between waterings to avoid root rot
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Temperature Frost-hardy, tolerates moderate summer heat; avoid prolonged temperatures above 38°C
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Characteristics

  • Leaf: Small, silvery-green oval leaves with dense fine hairs to reduce moisture loss
  • Flower: Ruffled rose-pink cup-shaped blooms, 2–3 cm wide, opening fully in direct sunlight
  • Stem: Woody at the base, trailing or spreading stems forming a low mat
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Care Guide

Watering

Water when the top 5 cm of soil is dry; only supplement during extreme dry spells if foliage wilts

Fertilization

Apply diluted balanced liquid feed once monthly. Avoid high-nitrogen fertilizers which promote leafy growth over blooms

Banana peel tea:Steep 1 fully decomposed banana peel in 1L water for 24 hours; dilute 1:2 before applying as a root drench
Pruning
  • Deadhead spent blooms promptly to encourage extended flowering
  • Trim back leggy, overgrown stems by one-third in early spring to maintain compact growth
  • Remove dead or damaged foliage in late winter to improve airflow
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxic effects to humans

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Garden Uses & Culture

Culture: N/A

Usage: Rock garden groundcover, container ornamental, slope stabilization plant