- Hardiness Zone: 3-11 Annual
- Hardiness Zone: 7-11 Biennial Often Grown As An Annual
Seed Depth: 1/2 inch
Seed Spacing: 6–12 inches
Row Spacing: 18–24 inches
Sunlight: Full sun to partial shade
Days to Sprout: 7–14 days
Days to Maturity: 50–60 days
Growth Habit: Upright, leafy biennial grown as an annual
Sunlight: Thrives in full sun but tolerates partial shade, especially in warmer climates.
Soil Type: Prefers rich, well-drained soil with a pH of 6.0–7.5. Adding compost improves growth.
When to Plant: Sow seeds directly outdoors in early spring or late summer for a fall crop. For an earlier harvest, start seeds indoors 4–6 weeks before the last frost.
Direct Sowing: Plant seeds 1/2 inch deep, spacing them 6–12 inches apart in rows 18–24 inches apart. Thin seedlings to the desired spacing as they grow.
Indoor Sowing: Start seeds in trays and transplant when seedlings are 4–6 inches tall.
Succession Planting: Sow every 2–3 weeks for a continuous harvest during the growing season.
Watering: Water consistently to keep the soil evenly moist but not soggy. Mulch helps retain moisture and regulate temperature.
Fertilizing: Use a balanced fertilizer or compost at planting and mid-season to encourage vigorous leafy growth.
Pruning: Harvest outer leaves regularly to encourage new growth and maintain plant health.
Pest and Disease Control: Monitor for aphids, slugs, and leaf miners. Use organic pest control methods and ensure proper spacing for airflow.
When to Harvest: Harvest outer leaves when they are 8–10 inches long, typically 50–60 days after planting. Baby greens can be harvested earlier.
How to Harvest: Use scissors or a knife to cut leaves at the base, leaving the central growing point intact for continuous harvests.
Seed Collection: Allow plants to bolt and form seed heads. Collect seeds once heads are fully dry.
Storing Seeds: Store seeds in an airtight container in a cool, dry place.
Why You’ll Love It
Lucullus Swiss Chard is a time-tested heirloom known for its heat resistance, productivity, and tender texture. The broad, crinkled green leaves and light-colored stems grow vigorously through spring, summer, and fall — even in warmer climates where other greens may fade. Perfect for gardeners seeking a low-maintenance, high-reward leafy green that performs reliably and tastes great whether raw or cooked.
Plant Characteristics
Height: 18–24 inches
Growth Habit: Upright with large, ruffled leaves and thick, pale green stalks
Leaf Type: Bright green, heavily savoyed (crinkled) with wide, fleshy stems
Days to Maturity: 50–60 days (25–30 for baby greens)
Hardiness: Cool-season biennial grown as an annual
Flavor and Culinary Uses
Flavor: Mild, slightly earthy, and smooth — sweeter and less bitter than kale
Culinary Uses: Great for sautéing, steaming, adding to stir-fries and soups, or used raw in salads when young. The thick stems are excellent when braised or pickled.
Companion Planting Tips
Good Companions: Cabbage, onions, carrots, and beets
Avoid Planting Near: Pole beans, which may compete for light and space
Bonus Benefit: Continues producing after multiple harvests and tolerates heat better than most leafy greens
Common Issues and Solutions
Leaf Miners or Aphids: Remove damaged leaves and use row covers to prevent infestations
Bitter Flavor: Harvest regularly and avoid stress from heat or drought
Bolting in Extreme Heat: Shade plants in hot climates to prevent early flowering
Seeds Per Packet
3g | Approximately 115 |
5g | Approximately 190 |
7g | Approximately 266 |
10g | Approximately 380 |
Why You’ll Love It
Lucullus Swiss Chard is a time-tested heirloom known for its heat resistance, productivity, and tender texture. The broad, crinkled green leaves and light-colored stems grow vigorously through spring, summer, and fall — even in warmer climates where other greens may fade. Perfect for gardeners seeking a low-maintenance, high-reward leafy green that performs reliably and tastes great whether raw or cooked.
Plant Characteristics
Height: 18–24 inches
Growth Habit: Upright with large, ruffled leaves and thick, pale green stalks
Leaf Type: Bright green, heavily savoyed (crinkled) with wide, fleshy stems
Days to Maturity: 50–60 days (25–30 for baby greens)
Hardiness: Cool-season biennial grown as an annual
Flavor and Culinary Uses
Flavor: Mild, slightly earthy, and smooth — sweeter and less bitter than kale
Culinary Uses: Great for sautéing, steaming, adding to stir-fries and soups, or used raw in salads when young. The thick stems are excellent when braised or pickled.
Companion Planting Tips
Good Companions: Cabbage, onions, carrots, and beets
Avoid Planting Near: Pole beans, which may compete for light and space
Bonus Benefit: Continues producing after multiple harvests and tolerates heat better than most leafy greens
Common Issues and Solutions
Leaf Miners or Aphids: Remove damaged leaves and use row covers to prevent infestations
Bitter Flavor: Harvest regularly and avoid stress from heat or drought
Bolting in Extreme Heat: Shade plants in hot climates to prevent early flowering
Seeds Per Packet
3g | Approximately 115 |
5g | Approximately 190 |
7g | Approximately 266 |
10g | Approximately 380 |
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