Sweet Woodruff

Fragrant low-growing groundcover with whorled bright green leaves and delicate white spring flowers — excellent for carpeting dry shade under trees and shrubs with minimal maintenance. (Galium odoratum)

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Galium odoratum, commonly known as Sweet Woodruff, is a charming shade-loving groundcover prized for its whorled green foliage and clusters of starry white flowers in late spring. Its leaves release a sweet, hay-like fragrance when dried, making it popular for potpourri, sachets, and traditional May wine. Hardy, deer resistant, and easy to grow, it’s perfect for naturalizing under trees, filling woodland gardens, and pairing with spring bulbs for a soft, fragrant carpet.

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Growing Information

Growing zone guide

Growing Zone Zone 4, Zone 5, Zone 6, Zone 7, Zone 8

Sunlight Partial shade to full shade

Type of Soil Slightly acidic to neutral

Mature Height 6 to 12 inches

Maintenance Level Low maintenance

Water Requirement Moderate watering (once a week)

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Additional Information

Growth Rate	Moderate to fast; spreads quickly by stolons to form colonies Best for naturalizing in shaded sites where controlled spread is welcome
Colorful Leaves	No
Flowering	Yes
Bloom Color	White
Ornamental Berries	N/A
Disease resistant	Yes
Cold Tolerant	Yes
Heat Tolerant	No
Drought Tolerant	No
Deer Resistant	Yes
Edible	No
Wildlife Attraction	Attracts bees, butterflies, and other pollinators with its nectar-rich white flowers Dense mats provide cover for small invertebrates and beneficial insects
Self-pollinating	Cross-pollinating
Seasonality	Spring: fresh green foliage emerges, followed by white flowers in late spring Summer: flowers fade; foliage continues as lush groundcover Fall: foliage remains green until frost, then yellows or dies back Winter: dormant in colder climates; semi-evergreen in mild regions
Ideal For	– Shade groundcover, woodland gardens, underplanting bulbs, cottage gardens, fragrant dried foliage for crafts and potpourri
Leaf Description	Whorls of lance-shaped, bright green leaves arranged in star-like patterns around stems Leaves release a sweet, hay-like fragrance when crushed or dried Forms dense carpets of fine-textured foliage
Flower Description	Small, star-shaped, pure white flowers bloom in loose clusters Bloom time is late spring to early summer Creates a delicate, frothy effect above foliage
Pruning & Maintenance	After flowering in late spring, shear plants back by one-third to encourage fresh foliage Remove yellowed or damaged leaves to keep the groundcover tidy Invasive in some conditions, so trim runners to contain spread
Water Needs	Prefers evenly moist soil; water regularly during establishment Once established, moderately drought tolerant in shade, but prefers consistent moisture Avoid prolonged dryness, which causes foliage to yellow
Light Needs	Thrives in partial to full shade; ideal under deciduous trees or in woodland gardens Can tolerate morning sun in cooler regions if soil is consistently moist Avoid hot, direct afternoon sun which scorches delicate leaves
Harvesting	Traditionally harvested for aromatic leaves, which are dried for use in potpourri, sachets, or herbal crafts Leaves contain coumarin, giving them a sweet fragrance when dried Used historically to flavor May wine in parts of Europe (not recommended in excess due to coumarin content)
Fertilizing	Low fertility needs; thrives in organically rich soils without heavy feeding Top-dress with compost or leaf mold annually in spring to refresh nutrients Avoid synthetic fertilizers, which can encourage weak, floppy growth
Additional Care Tips	N/A
Pollination	Pollinated by bees, flies, and small insects attracted to nectar-rich flowers Flowers are fertile and may self-seed in ideal conditions
Companion Plants	Shade-loving perennials such as Hosta, Pulmonaria, Tiarella, Brunnera, and Heuchera Spring bulbs like Narcissus, Galanthus, and Tulipa, as Woodruff covers fading bulb foliage Other groundcovers such as Lamium, Ajuga, and Pachysandra for layered carpets Ferns (Dryopteris, Athyrium) for contrasting texture