Sweet Woodruff (Galium odoratum)

Sweet Woodruff

Galium odoratum

Its tiny white blooms carry honeyed spring scent, soft groundcover for shade. Perennial herbaceous groundcover; common name: sweet woodruff.

Partial sun
2/week
Beginner
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Plant Needs

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Sunlight Thrives in partial to full shade; avoid direct midday sun which can scorch delicate foliage
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Watering Keep soil consistently moist but not waterlogged; tolerate short periods of dryness in cool weather
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Temperature Hardy to -20°C for outdoor overwintering; avoid prolonged temperatures above 25°C which can cause leaf browning
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Characteristics

  • Leaf: Whorls of 6–8 narrow, lance-shaped, bright green leaves arranged around square stems
  • Flower: Clusters of tiny, star-shaped white blooms with four petals
  • Stem: Square, delicate, trailing stems that root at nodes to spread forming dense mats
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Care Guide

Watering

Keep soil evenly moist, mist occasionally during dry spells

Fertilization

Diluted balanced liquid feed once monthly. Use a low-nitrogen feed to promote compact growth and flowering

Banana peel compost tea:Compost banana peels for 2–3 weeks, dilute 1:20 with water for root drench; avoid raw peels to prevent mold growth
Pruning
  • Trim back faded flower stems after blooming to encourage compact, dense growth
  • Thin overcrowded patches in early spring to improve airflow and reduce disease risk
  • Cut back foliage to ground level in late autumn to prepare for winter dormancy
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirms no toxicity to cats; safe for feline exposure

Humans: No known toxic effects on humans per ASPCA and horticultural authorities

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Garden Uses & Culture

Culture: Used in traditional European May wine for its sweet, honeyed fragrance

Usage: Shade garden groundcover, edible garnish, herbal tea ingredient