How to Grow Fordhook Giant Swiss Chard

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Fordhook Giant Swiss Chard

Beta vulgaris subsp. cicla var. flavescens

vegetable

Fordhook Giant is a classic Swiss chard variety prized for its large, crinkled dark green leaves and thick, pale yellow-green stems. This cold-hardy leafy green is a prolific producer that can be harvested continuously throughout the growing season. It's an heirloom variety that has been a gardener's favorite since the 1920s due to its vigor, flavor, and reliability.

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Example Fordhook Giant Swiss Chard timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Fordhook Giant Swiss Chard

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Fordhook Giant Swiss Chard

    Around Jun 1

    ≈ 45 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Fordhook Giant Swiss Chard dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun to partial shade; prefers 6+ hours of direct sunlight, but tolerates afternoon shade in hot climates
💧
Water: Keep soil consistently moist but not waterlogged. Water deeply 1-2 times per week, providing about 1-1.5 inches weekly. Increase frequency during hot spells. Mulch to retain moisture and regulate soil temperature.
📏
Spacing: 12-18 inches
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Days to maturity: 45-60
🌱
Planting depth: 0.5-0.75 inches

Soil

Type: Rich, well-draining loamy soil with good organic matter
pH: 6.0-7.5
Amendments:
Compost Well-rotted manure Peat moss or coco coir Balanced fertilizer (10-10-10) Nitrogen-rich fertilizer for leaf production

Growing Zones

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Thrives in zones 2-10; prefers cooler seasons but tolerates heat better than spinach

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a

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Growth Stages

1

Seedling

2-3 weeks

Seeds germinate in 7-14 days; seedlings emerge with two cotyledons and develop first true leaves

Keep soil moist but not soggy. Thin seedlings to proper spacing once true leaves appear. Provide bright light if growing indoors.

2

Vegetative Growth

3-4 weeks

Plant develops large, deeply crinkled dark green leaves and thick stems; rapid leaf expansion occurs

Water consistently, maintain adequate spacing for air circulation, apply nitrogen fertilizer every 3-4 weeks. Mulch around plants to retain moisture and keep roots cool.

3

Leaf Production

4-8+ weeks

Plant reaches harvestable size with robust outer leaves while continuing to produce new inner leaves from the center

Begin harvesting outer leaves once plant is 8-10 inches tall. Regular harvesting encourages more leaf production. Continue fertilizing and watering consistently.

4

Mature Plant

Ongoing until season end or bolting

Plant is fully established, 12-18 inches tall with abundant large leaves and thick stems; reaches maximum productivity

Harvest continuously by removing outer leaves. Remove flower stalks if they appear to redirect energy to leaf production. In extreme heat, provide afternoon shade to prevent bolting.

5

Bolting/End of Season

Variable, triggers seasonal or environmental stress

Plant sends up flower stalks and leaf quality declines; growth slows in response to heat or day length changes

Remove flowering stalks to extend harvest. In hot climates, plant for fall/winter harvest instead. Plant may recover if heat passes and watering increases.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Beans Corn Fennel Potatoes

Common Pests

  • Remove affected leaves, apply neem oil or spinosad, encourage beneficial predatory wasps, use row covers on young plants

  • Increase humidity and water spray, apply neem oil or horticultural soap, remove heavily infested leaves

  • Strong water spray to dislodge, insecticidal soap, neem oil, encourage natural predators like ladybugs

  • Yellow sticky traps, neem oil or horticultural soap, reflective mulches, insecticidal soap sprays

  • and

    Hand-pick, create barriers with diatomaceous earth or copper tape, beer traps, encourage ground beetles

  • Remove infected leaves promptly, improve air circulation, avoid overhead watering, apply fungicide if severe

Uses

🍳

Nutritious Cooking Greens

Culinary

Fordhook Giant is excellent sautéed, steamed, or added to soups and stews. The tender leaves and stems provide a mild, slightly sweet flavor that pairs well with garlic, olive oil, and lemon. [source]

🍳

Raw Salads

Culinary

Young leaves can be used raw in salads, providing a tender, mild green component. The colorful stems add visual appeal and a slightly earthy crunch. [source]

💊

Nutritional Powerhouse

Medicinal

Swiss chard is extremely rich in vitamins K, A, and C, as well as magnesium, potassium, and iron. Regular consumption supports bone health, cardiovascular function, and overall nutritional status. [source]

🏠

Companion Planting Benefits

Household

Fordhook Giant's natural pest-deterrent properties and ability to share space with other vegetables make it valuable in polyculture gardens and crop rotation systems for sustainable pest management. [source]

🦋

Pollinator Support

Wildlife

When allowed to flower, Fordhook Giant provides late-season nectar and pollen for bees and beneficial insects. The seeds also feed birds in fall and winter. [source]

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

Harvest Tips

Begin harvesting when outer leaves reach 6-10 inches long (typically 45-60 days after planting). Pinch or cut outer leaves at the base, allowing the center to continue growing. Harvest regularly to encourage continuous production. Young leaves are more tender; older leaves are tougher but still edible. Plants can produce for 2-3 months or longer in cool seasons. Morning harvests offer peak crispness. In hot climates, harvest in early morning to get the best quality before heat stress.

Fun Facts

  • 🌱 Fordhook Giant was bred by the W. Atlee Burpee seed company in the early 1920s and remains one of the most popular heirloom Swiss chard varieties nearly 100 years later due to its exceptional productivity.
  • 🌱 Unlike many leafy greens, Swiss chard can tolerate light frosts and actually improves in flavor after a frost, making it an excellent spring and fall crop even in colder climates.
  • 🌱 The striking yellow-green stems are not only decorative but can be harvested separately and prepared like asparagus or used in stir-fries, providing two distinct vegetables from a single plant.

Gardening Terms

New to gardening? Learn about terms used in this guide:

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