Red Clover
Trifolium pratense
Red clover is a short-lived perennial legume with rounded pinkish-purple flower heads, widely grown as a nitrogen-fixing cover crop and forage plant. Its blossoms are also a popular ingredient in herbal teas.
- Light
- Full sun
- Water
- Moderate; drought-tolerant once established
- Difficulty
- Easy
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Overview
Red clover (Trifolium pratense) is a perennial flowering legume in the pea family (Fabaceae), native to Europe, Western Asia and northwest Africa and now naturalized across much of the temperate world.
Like other legumes it forms a symbiosis with Rhizobium bacteria in root nodules, fixing atmospheric nitrogen into the soil. This makes it a staple cover crop, green manure and pasture forage.
Its pink-purple flower heads are also harvested for herbal teas and supplements, where they are valued for their isoflavone content.
How to identify it
- Flowers: dense, rounded to oval heads about 2-3 cm across, made of many small pink to magenta-purple florets
- Leaves: trifoliate (three leaflets), each oval leaflet usually marked with a pale V-shaped or crescent watermark
- Stems: soft, somewhat hairy, 20-60 cm tall, often sprawling then upright
- Habit: short-lived perennial forming loose clumps
- Roots: deep taproot with nitrogen-fixing nodules
Care & growing
Light: Full sun for best growth and flowering.
Water: Moderate moisture; well established plants tolerate drought thanks to their taproot.
Soil: Adapts to a wide range of soils but prefers well-drained, near-neutral loam; thrives without added nitrogen.
Temperature: Cool-season grower, hardy through about USDA zones 4-8.
Feeding: Generally none needed; it supplies its own nitrogen. Phosphorus and potassium help on poor soils.
Propagation: Sow seed directly in spring or late summer; often inoculated with rhizobia for best nodulation.
Habitat & origin
Native to Europe, western Asia and northwestern Africa, red clover grows naturally in meadows, grasslands, roadsides and field margins. It has been carried worldwide as a forage and cover crop and is now naturalized throughout North America and other temperate regions.
It is widely sown in pastures, hay fields, orchards and gardens as a soil-improving green manure.
Uses & benefits
Agricultural: A premier nitrogen-fixing cover crop, green manure and high-protein forage for livestock.
Culinary: The flower heads and young leaves are edible and used fresh in salads or dried for tea.
Medicinal: Flower extracts, rich in isoflavones, are sold as supplements traditionally associated with menopausal and skin support.
Ecological: An excellent nectar source for bees and bumblebees and a host plant for several butterflies.
Frequently asked questions
Does red clover really improve soil?
Yes. As a legume it hosts nitrogen-fixing bacteria in its roots, adding nitrogen and organic matter when tilled in, which is why it is a popular green manure and cover crop.
Can you eat red clover?
Yes, the flowers and young leaves are edible and commonly used in teas, though they are best in moderation and tastiest when flowers are fresh.
Is red clover a perennial?
It is a short-lived perennial, often behaving like a biennial; it usually persists two to three years and self-seeds readily.
Is red clover good for bees?
It is an excellent nectar plant, especially favored by long-tongued bumblebees, and is widely planted for pollinator support.
Red Clover guides
In-depth guides for identifying, growing, and caring for Red Clover.
