Cleavers
Galium aparine
Cleavers is a sprawling annual herb covered in tiny hooked hairs that cling to skin, clothing, and other plants. A common hedgerow weed, it is also gathered as an edible and traditional medicinal herb.
- Light
- Part shade to full sun
- Water
- Moderate; prefers moist ground
- Difficulty
- Easy
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Overview
Cleavers (Galium aparine) is a scrambling annual of the bedstraw family, instantly recognizable by its Velcro-like clinging habit. Whorls of narrow leaves and the entire stem are armed with minute backward-facing hooks.
Though widely regarded as a weed, cleavers has long been valued as a spring tonic, a forage plant, and a folk medicine. Its tiny seeds also cling to fur and clothing, aiding its spread.
How to identify it
- Leaves: Narrow, lance-shaped leaves arranged in whorls of 6-8 around the stem
- Stems: Square, weak, sprawling stems covered in tiny hooked bristles that cling
- Flowers: Tiny, four-petaled white-to-greenish flowers in small clusters
- Fruit: Pairs of small round burrs covered in hooked hairs
- Habit: Scrambling annual climbing over other vegetation, up to several feet long
Care & growing
Light: Tolerates full sun to fairly deep shade.
Water: Prefers moist, fertile ground but is widely adaptable.
Soil: Rich, damp soils of hedgerows, woods, and waste places.
Temperature: Cool-season annual; germinates in fall or early spring.
Feeding: None needed; thrives in disturbed, nutrient-rich soil.
Propagation: Self-seeds prolifically. In gardens it is more often controlled than cultivated; pull before it sets seed if unwanted.
Habitat & origin
Cleavers is native across Europe, Asia, and North America, growing in hedgerows, woodland edges, riverbanks, gardens, and disturbed ground.
It is a near-cosmopolitan weed of temperate regions and is rarely deliberately planted, though foragers harvest it from the wild.
Uses & benefits
- Culinary: Young spring shoots are edible cooked as a pot herb; roasted seeds have been used as a coffee substitute
- Medicinal (traditional): Used as a lymphatic tonic and diuretic in herbalism
- Practical: The clinging stems were historically used to sieve milk and stuff mattresses (a 'bedstraw')
- Ecological: Provides food for some moth larvae and ground cover for wildlife
Frequently asked questions
Why does cleavers stick to everything?
Its stems, leaves, and seeds are covered in tiny backward-pointing hooked hairs that catch on fabric, skin, fur, and neighboring plants.
Can you eat cleavers?
Yes. Young spring shoots can be cooked as greens, and the roasted seeds make a coffee-like drink. Raw stems are unpleasantly bristly.
Is cleavers a weed?
It is generally treated as a weed because it self-seeds heavily and scrambles over other plants, but it is harmless and useful.
Is cleavers related to coffee?
Yes, both belong to the Rubiaceae family, and cleavers seeds have historically been roasted as a coffee substitute.
Cleavers guides
In-depth guides for identifying, growing, and caring for Cleavers.
