How to Grow Red Clover 'Arlington'

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Red Clover 'Arlington'

Trifolium pratense 'Arlington'

herb

Red Clover 'Arlington' is a perennial legume cultivar valued for its high-quality forage production and nitrogen-fixing capabilities. This variety is particularly popular in agricultural and pasture settings for its improved yield and disease resistance compared to standard red clover. It produces distinctive purple-red flower heads and dense green foliage suitable for hay, pasture, and cover cropping.

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Example Red Clover 'Arlington' timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Red Clover 'Arlington'

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Red Clover 'Arlington'

    Around Oct 14

    ≈ 180 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Red Clover 'Arlington' dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum; prefers maximum light exposure
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Water: Moderate watering; requires consistent moisture during establishment. Once established, drought-tolerant but performs best with 15-20 inches of annual rainfall. Avoid waterlogging.
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Spacing: 3-6 inches between plants when direct seeding; thins naturally to 6-12 inches inches
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Days to maturity: 180-240 days from seed to first flower, variable depending on season and location
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Planting depth: 0.25-0.5 inches; plant shallowly as seed needs light to germinate

Soil

Type: Well-draining loamy to clay loam soil with good fertility
pH: 6.0-7.0
Amendments:
Lime if pH is below 6.0 Phosphorus Potassium Avoid excessive nitrogen (as a legume, it fixes its own)

Growing Zones

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Thrives in zones 2-8, with best performance in zones 3-7

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

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Growth Stages

1

Germination & Seedling

2-3 weeks

Tiny cotyledons emerge with the distinctive clover leaf shape beginning to form. First true trifoliate (three-part) leaves appear within 7-10 days.

Keep soil consistently moist but not waterlogged. Ensure adequate light. Thin seedlings if crowded. No fertilizer needed yet.

2

Vegetative Growth

4-8 weeks

Plant develops multiple branches and dense foliage with characteristic trifoliate leaves. Stems elongate and the root system deepens. Plant builds biomass and establishes nitrogen-fixing nodules on roots.

Maintain consistent moisture. Monitor for pests and diseases. No nitrogen fertilization needed; the nodulating bacteria will handle nitrogen fixation. Allow adequate space for air circulation.

3

Pre-Flowering/Budding

2-4 weeks

Flower buds begin to form at stem tips, appearing as tight clusters. Plant continues to thicken and height increases. Foliage remains dense and vibrant green.

Ensure adequate light and nutrient availability. Water consistently if rainfall is sparse. Monitor for pests like spider mites and grasshoppers.

4

Flowering

3-6 weeks

Distinctive rounded flower heads appear in purple-red color, attracting pollinators. Flowers are composed of small individual florets clustered together. Plant reaches maximum height (18-36 inches depending on conditions).

Avoid cutting or heavy grazing during early flowering to allow seed set. Ideal time for first harvest if used as forage. Provide water during extended dry periods.

5

Seed Development & Senescence

4-6 weeks (variable)

Flowers fade to brown as seeds develop inside the flower head. Plant may decline in vigor in hot weather or continue growth into fall depending on climate.

Allow flowering to complete for seed production if desired. In forage production, harvest before this stage. For perennial establishment, avoid cutting after late summer.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Allelopathic plants like black walnut Highly competitive crops in early establishment phase Poorly drained areas prone to root rot fungi

Common Pests

  • Monitor adults in spring; use resistant varieties like 'Arlington'; cultural control through crop rotation; biological control with parasitoid wasps

  • Harvest before full seed maturity; destroy infested seed heads; use resistant cultivars; crop rotation

  • Spray water to dislodge; use horticultural oils; encourage natural predators; ensure adequate moisture

  • Allow natural predation; manage borders to reduce habitat; insecticides only in severe infestations

  • Plant disease-resistant varieties like 'Arlington'; avoid continuous clover monoculture; improve drainage; crop rotation

Uses

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Culinary Herb & Food Flavoring

Culinary

Red clover flowers and young leaves are edible and can be added to salads, teas, or used as a garnish. The flowers have a slightly sweet, hay-like flavor and are traditionally used in herbal teas. [source]

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Traditional Herbal Medicine

Medicinal

Red clover has been used in traditional medicine for respiratory health, menopausal support, and general wellness. Modern herbalists use it in infusions and tinctures, though clinical evidence varies. [source]

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Livestock Forage & Feed

Household

'Arlington' red clover is extensively used as a high-protein forage crop for cattle, sheep, and other livestock. Its superior yield and palatability make it a valuable component of pasture and hay systems. [source]

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Cover Crop & Soil Amendment

Household

As a nitrogen-fixing legume, red clover enriches soil with bioavailable nitrogen, reducing the need for synthetic fertilizers in sustainable and organic farming systems. It improves soil structure and prevents erosion. [source]

🦋

Pollinator & Wildlife Support

Wildlife

Red clover flowers attract and support honeybees, bumblebees, and other native pollinators. It provides nectar and pollen when other forage is scarce, making it valuable for pollinator conservation. [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: Harvest at early bloom stage (when 25-50% of flowers are open) for maximum nutritional value and palatability. Cut 2-3 inches above ground. For seed: Allow full flowering and seed maturation; harvest when seed heads turn brown but before shattering occurs, typically 60-80 days after flowering begins. Use combine harvester or swath and thresh. Avoid harvesting in wet conditions. For 'Arlington' cultivar, expect 2-3 cuttings per season in good conditions, with first harvest typically in the year after establishment.

Fun Facts

  • 🌱 Red clover 'Arlington' was developed as an improved cultivar specifically for superior forage yield and disease resistance, making it a preferred choice for commercial farming compared to older red clover varieties.
  • 🌱 Like all true clovers, red clover's trifoliate (three-part) leaf is the source of its genus name Trifolium, derived from Latin 'tri' (three) and 'folium' (leaf).
  • 🌱 Red clover is a biennial or short-lived perennial that can live 2-4 years, often used in rotation systems where it builds soil fertility before other crops are planted in the enriched soil.

Gardening Terms

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