How to Grow Perpetual Spinach
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Perpetual Spinach
Beta vulgaris subsp. cicla
vegetablePerpetual spinach, also called Swiss chard or mangold, is a leafy green vegetable with large, tender leaves and prominent ribs. Unlike true spinach, it thrives in warm weather and can be harvested continuously throughout the growing season. It's highly productive and nutritious, making it a favorite in kitchen gardens.
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Example Perpetual Spinach timeline · Pittsburgh, PA (Zone 6b)
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Plant Perpetual Spinach
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Perpetual Spinach
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Perpetual Spinach dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Grows well in zones 2-10; thrives especially in zones 5-9
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Germination
7-14 daysSeeds sprout and cotyledons emerge from soil
Keep soil moist but not waterlogged. Maintain temperature around 60-70°F. Thin seedlings to proper spacing once true leaves appear.
Seedling/Early Growth
2-3 weeksFirst true leaves develop; plant builds root system
Ensure adequate light to prevent leggy growth. Water regularly. Thin to final spacing if not already done. Begin light feeding with balanced fertilizer.
Vegetative Growth
3-4 weeksLeaves expand, petioles (ribs) thicken and elongate, plant becomes bushy
Water consistently. Apply mulch to retain moisture and regulate soil temperature. Feed every 2-3 weeks with balanced or slightly nitrogen-rich fertilizer.
Harvest-Ready/Mature
Ongoing, 2-4 months or longerOuter leaves are 6-12 inches long and tender; plant continues producing new center leaves
Begin outer-leaf harvesting. Continue regular watering and feeding. Remove flower stalks if plant bolts. Harvest consistently to encourage more growth.
Extended Production
Several months until frost or voluntary boltingPlant remains productive, continuously producing new leaves from the center
Maintain consistent watering and feeding schedule. Pinch off flower buds in warm weather to prolong harvest. In cool seasons, may slow or bolt.
Common Pests
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Row covers on young plants; neem oil spray; remove affected leaves; encourage natural predators
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Increase humidity with regular misting; insecticidal soap; neem oil; strong water spray to dislodge
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Strong water spray; insecticidal soap; neem oil; beneficial insects like ladybugs
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and
Handpick; Bacillus thuringiensis (Bt); neem oil; row covers on young plants
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and
Copper tape barriers; beer traps; remove debris; encourage ground beetles; diatomaceous earth
Uses
Fresh Greens & Cooking
CulinaryPerpetual spinach leaves are tender and nutritious when young, excellent for salads and fresh eating. Older leaves are ideal for sautéing, steaming, soups, and cooked dishes where their mild, slightly sweet flavor shines. [source]
Nutritional Content
CulinaryRich in vitamins A, C, and K, as well as iron, magnesium, and calcium. Contains beneficial compounds that support bone health and general wellness. [source]
Storage & Preservation
HouseholdLeaves store well in the refrigerator for up to a week. Can be blanched and frozen for winter use, or dehydrated for long-term storage. [source]
Traditional Health Uses
MedicinalHistorically used in folk medicine to support digestion and overall vitality. Modern studies support its role as part of a nutritious diet. [source]
Pollinator & Beneficial Insect Support
WildlifeIf allowed to flower, perpetual spinach provides pollen and nectar for bees and beneficial insects. Flowers attract pollinators beneficial to the entire garden. [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 they reach 6-10 inches long, typically 50-60 days after planting. Pinch or cut outer leaves from the base, leaving inner leaves and the growing center intact. Harvest regularly (2-3 times per week) to promote continuous production and prevent bolting. Avoid harvesting more than 1/3 of the plant at once. Young, tender leaves are best for fresh use; older leaves are excellent for cooking.
Fun Facts
- 🌱 Perpetual spinach is not true spinach (Spinacia oleracea) but rather a variety of chard; it was marketed as 'perpetual' because it can be harvested continuously unlike true spinach, which quickly bolts in heat.
- 🌱 The vibrant red, orange, yellow, or white ribs found in ornamental chard varieties are the same species as perpetual spinach, making it both nutritious and beautiful in the garden.
- 🌱 A single plant can produce harvestable leaves for months, making it one of the most productive leafy greens for a given garden space.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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