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Crimson Clover

Legume
Cool-season annual cover crop and forage
Full sun to partial shade

Also known as: Trifolium incarnatum · Italian clover · Scarlet clover

When & where

Season
Cool-season annual cover crop and forage
USDA zones
Annual in zones 3–10
Sun
Full sun to partial shade
Start indoors
Not applicable
Direct sow outdoors
Late summer to early fall (mild zones) or early spring
Days to harvest
70–90 days to bloom; till under before seed set

Germination

Germination time
7–14 days
Soil temperature
55–70°F (13–21°C)

Spacing & depth

Sow depth
1/4–1/2" (6–12 mm)
Seed spacing
Broadcast 1/4–1/2 lb per 1000 sq ft
Mature plant spacing
Broadcast
Row spacing
Broadcast

How to plant

Rake soil smooth, broadcast inoculated seed, and rake or roll lightly to cover. Water in. Mow or till under when 50% of plants are flowering for maximum nitrogen and biomass.

Grower's tip

Showy crimson-red conical flowers feed bees and beneficial insects. Excellent winter cover in mild zones; frost-killed in the coldest winters.

Soil preferences

Soil type

Well-drained loam. Beans and peas fix their own nitrogen — don't over-fertilize.

pH range

6.0–7.0

Amendments

Inoculate seed with rhizobia bacteria at planting for a nitrogen boost. Skip nitrogen fertilizer.

Watering

Frequency

1 in per week; more during flowering and pod fill.

Method

Drip at the base — wet foliage invites anthracnose and rust.

Over vs. under

Overwatered: yellow leaves, dropped blossoms, root rot. Underwatered: dropped flowers, short pods with few seeds.

Top-water or bottom-water?

Prefers top-watering — Top-water at the base with drip or soaker — beans and peas are highly prone to rust, anthracnose, and powdery mildew when leaves stay wet. Bottom-water starter pots for the first 2 weeks.

Temperature tolerance

Ideal daytime air temp

65–80°F (18–27°C) for beans; 55–70°F (13–21°C) for peas

Ideal nighttime air temp

50–65°F (10–18°C)

Frost sensitivity

Peas and favas tolerate frost; common beans, limas, and southern peas are frost-tender.

Container growing

Container-suitable?

Yes — great in containers

Recommended pot size

3+ gal (11 L) for bush types; use a trellis for pole types

Notes

Bush beans and peas do well in pots; pole types need a sturdy 6-ft trellis.

Succession planting

Bush beans every 2–3 weeks until 8 weeks before first frost. One planting of peas per cool season.

Detailed harvesting

Pick snap types young and often when pods snap crisply. For shell beans, let pods dry to brown on the plant.

Post-harvest storage & preservation

Fresh: refrigerate 3–5 days. Freeze blanched. Dry-shelled: store in sealed jars after freezing 3 days to kill weevil eggs.

Culinary, medicinal & other uses

Fresh snap, shell fresh, dry for storage, sprout for greens, cover crop for soil building.

Medicinal or traditional uses are shared for interest only — this is not medical advice. Consult a qualified professional before using any plant medicinally.

Seed saving

Pollination

Self-pollinating (peas, common beans). Runner beans and fava beans cross via bees.

Isolation needs

10 ft for common beans; 150 ft for runners and favas.

How to save

The pod IS the seed — let extras dry on the plant, shell, and freeze 3 days before storage.

Your zone's planting calendar

Pick your USDA hardiness zone and we'll estimate the key dates for crimson clover in your area. These are regional averages — always check your own last-frost forecast before sowing.

From your kitchen — grow crimson clover from what you already have

Beans and peas are the easiest seed to save — the seed IS the harvest.

  1. 1Leave pods on the plant until they turn tan and rattle.
  2. 2Pick whole pods on a dry day; shell into a bowl or paper bag.
  3. 3Air-dry indoors another 1–2 weeks — a bean should shatter, not dent, when hit with a hammer.
  4. 4Freeze 3 days in a sealed jar to kill weevil eggs, then store dry.

Storage: 3–4 years dry.

My Crimson Clover notes

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