How to Grow Clover (White, Red, Alsike)

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Clover (White, Red, Alsike)

Trifolium repens (white), Trifolium pratense (red), Trifolium hybridum (alsike)

herb

Clovers are nitrogen-fixing legumes widely used as cover crops, forage, and in pastures. They form symbiotic relationships with rhizobia bacteria in their root nodules, converting atmospheric nitrogen into plant-available forms. These perennial or short-lived perennial plants improve soil fertility while providing nutritious feed for livestock and pollinators.

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Example Clover (White, Red, Alsike) timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Clover (White, Red, Alsike)

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Clover (White, Red, Alsike)

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Clover (White, Red, Alsike) dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun to partial shade; minimum 4-5 hours daily, ideally 6+ hours
💧
Water: Moderate moisture needs; tolerates drought better once established. White clover more drought-tolerant than red. Water seedlings regularly until established; mature plants need supplemental water only during extended dry periods.
📏
Spacing: 4-6 inches apart for plants; seed at 5-10 lbs per acre in pasture or cover crop applications inches
📅
Days to maturity: 45-60 days to first flowering; continuous production over 2-4 years depending on variety and climate
🌱
Planting depth: Seed: 0.25 inches (surface sow or lightly cover); Transplants: 1-2 inches

Soil

Type: Well-draining loamy soil; tolerates clay and poor soils better than most legumes
pH: 6.0-7.0
Amendments:
Lime if pH below 6.0 Phosphorus and potassium for optimal nodulation Avoid excess nitrogen (inhibits nitrogen-fixing bacteria)

Growing Zones

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Zones 3-9; white clover hardy to zone 2; red and alsike perform best in zones 3-8

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b

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Growth Stages

1

Germination & Seedling

2-3 weeks

Seedlings emerge with cotyledons and first true trifoliate (three-lobed) leaves within 7-14 days. Tiny root nodules begin forming.

Keep soil consistently moist but not waterlogged. Protect from foot traffic. Ensure good drainage to prevent damping-off.

2

Vegetative Growth

3-4 weeks

Plant develops multiple stems and thick foliage; characteristic three-leaflet leaves proliferate. Root nodules enlarge and establish nitrogen-fixing colonies.

Monitor for pests and disease. No nitrogen fertilizer needed; phosphorus and potassium support nodulation. First grazing/cutting can occur when 6-8 inches tall.

3

Flowering

4-8 weeks (can be continuous with proper management)

Distinctive rounded or oval flower heads appear (white fuzzy, red/pink, or mixed colored depending on variety). Flowers attract bees and pollinators.

Avoid heavy grazing during flowering to allow pollination and seed set. Continue moderate watering. Flowering supports bee populations.

4

Seed Development & Maturation

6-10 weeks

Flowers fade to brown; seed pods form within the flower head. Plant may slow growth in extreme heat or drought.

Allow seed heads to mature if seed production is goal (8-10 weeks post-flowering). For forage, cut before seeds harden. Red clover may be biennial or short-lived perennial.

5

Dormancy & Overwintering

Variable; 3-6 months in northern zones

In cold climates, plants slow or go dormant in winter; regrow from crowns in spring. White clover remains green and actively grows in mild climates.

No special care needed. Plants survive winter through protected crowns. Spring grazing/cutting stimulates new growth.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Heavy feeders planted immediately without allowing nitrogen accumulation Allelopathic plants like black walnut Areas with recent herbicide application (especially phenoxy herbicides) Highly compacted soils until improved

Common Pests

  • Monitor young plants; encourage natural predators; grazing management; rotate pastures to break pest cycles

  • Manage as cover crop; insecticidal soap if severe; parasitic wasps provide biological control

  • Rarely economically significant; improve plant vigor through proper moisture and fertility management

  • and

    Remove debris harboring pests; encourage ground beetles; copper barriers around seedlings if needed

Uses

🍳

Edible Flowers & Tea

Culinary

Clover flowers are edible and can be added fresh to salads or brewed into a mild herbal tea. Red clover tea is traditional in herbalism and is sometimes consumed for nutritional support. [source]

💊

Traditional Herbal Remedy

Medicinal

Red clover has been used in traditional herbal medicine, particularly in women's health applications. Modern herbalism utilizes red clover preparations, though clinical evidence is still developing. [source]

🏠

Nitrogen Fixation & Soil Improvement

Household

Clover's primary agricultural value is its ability to fix atmospheric nitrogen through rhizobial bacteria in root nodules, enriching soil naturally without synthetic fertilizer. Incorporating clover cover crops or rotations can increase soil nitrogen by 100-300 lbs per acre annually. [source]

🦋

Pollinator & Livestock Forage

Wildlife

Clover flowers are critical nectar and pollen sources for honeybees, wild bees, and other pollinators. The nutritious forage supports grazing livestock (cattle, sheep, goats) and provides sustainable pasture management. [source]

🎨

Cover Crop & Green Manure

Craft

Clover is widely used as a cover crop to prevent soil erosion, suppress weeds, and build soil health. Tilling it into soil as green manure increases organic matter and provides slow-release nitrogen for subsequent crops. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

For forage/grazing: Cut at early flowering (boot to early bloom stage) for maximum nutritional value and regrowth potential. Graze when 6-8 inches tall, remove animals when plants decline to 2-3 inches. For hay: Cut early bloom, dry quickly to retain nutrients. For seed: Allow one cutting to fully mature seed heads (late summer), thresh and collect. Multiple cuttings possible per year in favorable climates. Red clover typically yields 1-3 cuttings annually; white clover produces continuously if managed properly.

Fun Facts

  • 🌱 Clover's nitrogen-fixing ability comes from a mutualistic relationship with rhizobia bacteria—the plant provides carbohydrates to the bacteria, which convert atmospheric nitrogen (N₂) into ammonia (NH₃) that the plant can use. A single clover plant can contribute 50-150+ lbs of nitrogen per acre annually.
  • 🌱 Four-leaf clover is a rare genetic variant (about 1 in 5,000) where an extra leaflet develops; it has become a lucky symbol, though botanically it's simply a developmental anomaly in an otherwise normal three-leafed plant.
  • 🌱 White clover (Trifolium repens) was introduced to North America by European colonists and quickly naturalized, becoming so common in lawns and pastures that it's now considered native by many. It's one of the most drought-tolerant clover species and can thrive in poor soils where other plants struggle.

Gardening Terms

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