Rough Lithodora (Lithodora hispidula)

Rough Lithodora

Lithodora hispidula

Its sky-blue blooms carpet low ground like scattered sapphires. Low-growing evergreen perennial; common name: Rough Lithodora.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; bright light encourages abundant blooming
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Watering Water deeply when top 2–3 cm of soil dries out; avoid waterlogging to prevent root rot
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Temperature Hardy to -10°C; tolerates mild summer heat, avoid prolonged temperatures above 30°C
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Characteristics

  • Leaf: Narrow, lance-shaped, hairy dark green evergreen foliage
  • Flower: Star-shaped bright sky-blue blooms with white centers
  • Stem: Trailing, woody-based stems covered in fine hairs
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Care Guide

Watering

Keep soil consistently moist but not saturated

Fertilization

Apply balanced slow-release fertilizer once at planting. Over-fertilization can reduce flower production

Eggshell powder top-dressing:Crush dried eggshells and mix into topsoil to improve soil structure and add calcium; avoid direct contact with plant roots
Pruning
  • Trim faded blooms to encourage potential re-blooming later in the season
  • Cut back straggly stems in early spring to maintain a compact, neat form
  • 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 toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental ground cover for rock gardens, border edges, and container displays