Swiss Chard Growing Guide

 

Swiss Chard (Beta vulgaris)

 

Swiss chard is a colorful, leafy green that is actually a type of beet, cultivated specifically for its edible stems and leaves. Often used as a substitute for spinach, chard is a versatile biennial crop that performs well across a broad range of growing conditions and can be enjoyed either cooked or raw.

Temperature

 

Swiss chard seeds germinate in soil temperatures ranging from 40–100°F, with an optimum temperature near 86°F. Seedlings can tolerate light frosts, and mature plants are hardy to moderate frosts, allowing them to overwinter in mild areas.

Best Growing Conditions Chard thrives during the spring and fall when cooler growing conditions support high-quality growth.
Heat Hot summer temperatures can reduce crop quality, stunt growth, and contribute to a bitter taste.

Soil

 

Swiss chard thrives in soil with a pH of 6.5 to 7.5 and prefers well-drained, fertile loam soil enriched with organic matter. Chard is adaptable, however, and can grow successfully across a variety of soil types and growing conditions.

Planting

 

Chard can be direct seeded ½ to 1 inch deep or transplanted when seedlings have developed 4 to 6 leaves. Plant in full sun where plants can receive approximately 8 to 10 hours of sunlight daily. Frequent irrigation is important to maintain consistent soil moisture throughout the growing season.

Direct Seeding: Sow beginning in midspring and continue into midsummer. In regions with mild winters, chard may also be planted for fall production.

Spacing

 

Spacing can be adjusted depending on whether Swiss chard is being grown for mature bunching leaves or young salad greens.

General Spacing Sow ½" deep, 2 seeds every 2", then thin plants to approximately 4" apart.
Transplants Space approximately 4" apart in rows 12–18" apart.
Bunching Sow about 6 seeds per foot, ½" deep, in rows 18–24" apart. Thin to 4–6" apart for larger leaves.
Salad Mix Sow in a 2–4" wide band, approximately 1" apart, at about 40 seeds per foot. Clip in approximately 5 weeks.

Harvest

 

Harvest the outer leaves first so the center of the plant can continue producing. Mature leaves are generally harvested when they reach approximately 8–12 inches long while they are still young and tender.

Multiple Harvests: For bunching or garden production, clip mature leaves individually and allow new leaves to continue developing. For baby-leaf production, young plants may be clipped just above the soil surface.

Swiss chard is typically harvested by hand and will continue producing until the plants begin to bolt or flower. Commercial growers may limit the number of harvests to maintain uniform leaf quality.

For More Information

 
→  Colorado State – Swiss Chard
→  UC ANR Publication – 8096
→  Cornell Home Gardening – Swiss Chard
→  Printable Version

Grow Swiss Chard

 

Ready to grow your own Swiss chard? Explore our selection of Swiss chard seed and find the right variety for your garden or operation.

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Swiss Chard Growing Guide

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