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How to Grow Red Clovers USA | Planting & Establishment

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Red Clover (Trifolium pratense)

Red clover (Trifolium pratense) flowering in a Norwegian meadow — “Red Clover (Rødkløver) (Trifolium pratense) - Bodø, Norway 2023-07-19” by Ryan Hodnett is licensed under CC BY-SA 4.0. Source: Wikimedia Commons

2 sources cited · Verified

The short answer

Site
6+ hours of sun
Biggest risk
Clover rot

Red clovers (Trifolium pratense) — RHS.

Unlike an annual crop, the work here is front-loaded into establishment: get the planting and the site right and the same plants crop for several seasons.

Core growing advice on this page is checked against named horticultural sources — see References.

Growth Stages

Red clover flower head dusted with pollen — “Rot-Klee mit Pollen” by Sportygirl123 is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Rot-Klee mit Pollen” by Sportygirl123 is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Stage BBCH Notes
Sowing 0 RHS/NC State: propagate by seed. RHS recommends full sun on un-manured, slightly acid, low-nitrogen ground -- classic hay-meadow conditions.
Establishment 3 NC State: fast-growing with an erect, ascending habit. RHS: generally pest-free and disease-free once established, fixing nitrogen through its root system.
Flowering 6 RHS: rounded clusters of pinkish-red flowers, 2-3cm across, from May to October -- an excellent nectar source for bees and other pollinators.
Harvest (leaves and flowers) 8 NC State: harvest young leaves before flowering for the mildest flavour; flowering heads can be picked through the flowering season and eaten fresh or dried.

Quick Facts

A red clover plant with trifoliate leaves and flower heads — “Rotklee 2010” by 4028mdk09 is licensed under CC BY-SA 3.0. Source: Wikimedia Commons
“Rotklee 2010” by 4028mdk09 is licensed under CC BY-SA 3.0. Source: Wikimedia Commons.
Factor Value
Sunlight 6-8 hours direct sun
Minimum survivable temp -20C
Drainage Moist but well-drained or well-drained (RHS); NC State: good drainage or occasionally dry, acidic or neutral soil, clay or loam.
Lifecycle RHS: rated H7 (-20C or below), hardy anywhere in the UK. NC State: a short-lived perennial with medium maintenance needs.
Edible parts leaves, flowers

At a Glance

Red clover growing in Minnesota, USA — “Red Clover - Saint James, Minnesota” by ToxicFlame427 is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Red Clover - Saint James, Minnesota” by ToxicFlame427 is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Trifolium pratense Red Clover Clover rot DISEASES

Harvest & Storage

Close-up of a pinkish-red clover flower head — “Rot-Klee” by 4028mdk09 is licensed under CC BY-SA 3.0. Source: Wikimedia Commons
“Rot-Klee” by 4028mdk09 is licensed under CC BY-SA 3.0. Source: Wikimedia Commons.

When to pick: NC State: pick young leaves before the plant flowers for salads or cooking like spinach; flowering heads can be picked once open and used raw, cooked, or dried.

Storage

NC State: flower heads can be dried and used as a flour substitute.

Diseases

Red clover growing among grass in an urban setting — “20230904 Trifolium pratense red clover koniczyna łąkowa Cemetery Panewnicka Street Katowice” by Abraham is licensed under CC BY 4.0. Source: Wikimedia Commons
“20230904 Trifolium pratense red clover koniczyna łąkowa Cemetery Panewnicka Street Katowice” by Abraham is licensed under CC BY 4.0. Source: Wikimedia Commons.
Clover rot

Sclerotinia trifoliorum

NC State names clover rot as a possible disease -- not mentioned by RHS, whose UK-context page reports the species as generally disease-free.

References

  1. Light: full sun (6+ hours). Soil: clay or loam/silt, acidic (<6.0) or neutral (6.0-8.0), good drainage or occasionally dry. Size: 6in-2ft height, 8in-1ft8in width, erect/ascending habit, fast growth. Hardiness: USDA zones 3a-9b. Origin: Eurasian native. Propagation: from seed. Edible use: leaves and flowering heads edible raw or cooked; young leaves harvested before flowering for salads or cooked like spinach; flower heads dried as a flour substitute; edible flowers taste sweet or hay-like but are "not easily digestible". Medicinal use: historically for athlete's foot, constipation, ulcers, corns, menopause symptoms; contains isoflavones; caution -- avoid if pregnant or nursing. Pests/diseases: clover rot possible; vigorous self-seeding rhizomes can make the plant weedy; listed as locally invasive in West Virginia and Kentucky. Nitrogen-fixing legume, valuable as a cover crop; short-lived perennial, medium maintenance.

  2. Hardiness H7 (-20C or below). Soil: clay, loam, sand, prefers slightly acid soil with low nitrogen levels (un-manured ground). Position: full sun, east/south/west-facing. Exposure: sheltered. Size: height 0.5-1m (30-50cm), spread 0.1-0.5m, 2-5 years to maturity. Moisture: moist but well-drained or well-drained. Propagation: by seed. Pests/diseases: generally pest-free and disease-free. Description: trifoliate leaves, rounded clusters of pinkish-red flowers 2-3cm across, May to October; native to GB/Ireland; traditional hay-meadow plant; nitrogen-fixing; excellent bee nectar source; may be grown as green manure.

2 independent sources are cited for this crop. Where they disagree - soil pH is the clearest case - every figure is preserved rather than averaged into false precision.

Frequently Asked Questions

What problems affect red clovers?

Our data links 1 disease to this crop. See the sections above for each one and how to manage it.

Plan next season before the problems start

Almost everything on this page resolves to your own frost dates rather than the calendar — the last spring frost moves by roughly two months between zone 3 and zone 10. The USA Garden Planner works from your zone so the timing is already decided before the season starts.

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SoilCommander Editorial Team

US vegetable growing guides · Adapted for USDA hardiness zones and US frost dates

Every SoilCommander guide is written and maintained by our editorial team for real US growing conditions, adapted to USDA hardiness zones and US frost-date data, with Cooperative Extension growing advice cited directly where a crop-specific source exists.

Vegetable Growing Guides USA

Last verified 2026-09-05

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