How to Grow Swiss Chard 'Lucullus'

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Swiss Chard 'Lucullus'

Beta vulgaris subsp. cicla 'Lucullus'

vegetable

Swiss Chard 'Lucullus' is a leafy green vegetable with large, crinkled leaves and distinctive pale yellow or cream-colored stems and ribs. This cold-hardy variety is prized for its tender leaves and mild flavor, suitable for raw salads or cooked dishes. It's a prolific producer that offers repeated harvests throughout the growing season.

When should you plant Swiss Chard 'Lucullus' in your zone?

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Example Swiss Chard 'Lucullus' timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Swiss Chard 'Lucullus'

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Swiss Chard 'Lucullus'

    Around Jun 6

    ≈ 50 days after planting

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

Growing Conditions

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Sun: Full sun to partial shade; 4-6 hours of direct sunlight daily optimal, tolerates afternoon shade in hot climates
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Water: Keep soil consistently moist but not waterlogged; provide 1-2 inches of water per week depending on rainfall and temperature; more frequent watering during hot, dry periods
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Spacing: 6-12 inches between plants; rows 18-24 inches apart inches
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Days to maturity: 50-60 days for full-sized leaves; harvest begins 30-40 days
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Planting depth: 0.5-0.75 inches deep; sow seeds directly or transplant seedlings

Soil

Type: Well-draining loamy soil rich in organic matter
pH: 6.0-7.0
Amendments:
Compost aged manure peat moss or coco coir balanced fertilizer (10-10-10)

Growing Zones

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Zones 2-10; thrives in cool to moderate climates 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

Germination

7-14 days

Seeds sprout and first true leaves emerge; cotyledons are visible within 7-10 days

Keep soil warm (50-70°F) and consistently moist; thin seedlings to prevent overcrowding; protect from cold snaps

2

Seedling/Vegetative Growth

2-3 weeks

True leaves develop; plant grows to 4-6 inches tall with 3-5 leaves; stems and ribs begin to show color

Provide bright light; thin to proper spacing; maintain consistent moisture; side-dress with compost if needed

3

Leaf Development

2-3 weeks

Plant reaches 8-12 inches with full-sized, crinkled leaves; prominent pale yellow stems and ribs become evident

Begin light harvesting of outer leaves; maintain steady water; apply balanced fertilizer every 2-3 weeks if needed

4

Production/Harvest Ready

6-10 weeks or more

Mature leaves are 8-10 inches long with large, tender blades; plant is 12-18 inches tall and very productive

Harvest outer leaves regularly to encourage continued production; water deeply and fertilize monthly; remove any bolting flower stems

5

Decline/End of Season

Variable; can extend 3-4 months in cool seasons

Leaves become tougher and smaller; plant may bolt when temperatures consistently exceed 75°F or during long photoperiods

Continue harvesting but expect smaller yields; provide shade cloth in extreme heat; plan successive sowings for continuous supply

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fennel Kohlrabi Corn Potatoes

Common Pests

  • Remove affected leaves; use row covers on young plants; inspect regularly and crush visible larvae

  • Spray with strong water stream; use insecticidal soap or neem oil; encourage beneficial insects like ladybugs

  • Use row covers early; apply neem oil or spinosad if infestation occurs; encourage natural predators

  • Hand-pick visible caterpillars; use Bacillus thuringiensis (Bt) for organic control; row covers on seedlings

  • Increase humidity by misting; spray with strong water; apply miticide if severe infestation develops

Uses

🍳

Leafy Green Vegetable

Culinary

'Lucullus' chard is versatile in the kitchen, suitable for sautéing, steaming, adding to soups, or eating raw when young and tender. The mildly sweet flavor and tender texture make it a favorite for salads, pasta dishes, and side dishes. [source]

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Nutritious Staple

Culinary

Rich in vitamins A, C, and K, as well as minerals like magnesium and potassium. Swiss chard is a nutrient-dense addition to any diet. [source]

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Traditional Herbal Use

Medicinal

Swiss chard has been used in traditional medicine for its potential anti-inflammatory and antioxidant properties. The high mineral content supports overall wellness. [source]

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Garden Productivity

Household

'Lucullus' is exceptionally productive, providing a continuous harvest over many weeks with minimal effort. One planting can supply multiple salads and cooked portions. [source]

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Garden Pollinator Support

Wildlife

If allowed to bolt, chard flowers attract bees and other pollinators, supporting garden biodiversity. [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 outer leaves when plant is 4-6 inches tall, typically 30-40 days after sowing. Pinch or cut leaves at the base to encourage bushier growth. Harvest regularly to maximize production; younger leaves are more tender. Continue harvesting through the season until plant bolts or becomes bitter in extreme heat. Morning harvesting provides the crispest leaves. Plants can produce for 2-4 months in moderate climates.

Fun Facts

  • 🌱 'Lucullus' is named after Lucullus, a Roman general and gastronome known for his lavish feasts, reflecting the superior culinary quality of this variety.
  • 🌱 Swiss chard is not actually from Switzerland; the name likely derives from the German/Swiss seedsmen who popularized it in Europe during the 1600s, though it originated in the Mediterranean region.
  • 🌱 The distinct pale yellow stems of 'Lucullus' are rich in beta-carotene and vitamin E, making them nutritionally valuable—many gardeners specifically preserve these ribs separately when cooking.

Gardening Terms

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

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