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Close-up of fresh spinach leaves growing in a bed

Spinach

Spinacia oleracea

beginner level

A cool-season green packed with nutrients, spinach is easy to grow in spring and fall, perfect for small spaces.

Photo: Unsplash via Unsplash

Quick Growing Facts

Sun Requirements
partial shade
Water Needs
moderate
Time to Harvest
40-50 days
Hardiness Zones
2-9
Mature Size
6-12 inches
Soil Type
Rich, well-draining

Soil & Bed Preparation

Blend compost and aged manure into the top 6 inches of soil. Spinach prefers a neutral pH; add lime if tests show acidity below 6.0.

Watering & Feeding

Provide 1 inch of water per week, delivered in light, frequent irrigations to keep soil consistently moist without waterlogging roots.

Feed with a nitrogen-forward organic fertilizer at planting and again three weeks later. A foliar spray of fish emulsion helps recovery after heavy harvesting.

Training & Maintenance

Harvest outer leaves first, leaving the crown intact for regrowth. For baby leaf production, cut just above the crown and allow a second flush.

Harvest & Storage

Harvest in the cool morning, rinse leaves, and spin dry. Store in an airtight container with a paper towel for up to a week or blanch and freeze for longer storage.

Planting Instructions

  • Sow 4-6 weeks before last frost
  • Plant ½ inch deep
  • Space 3-4 inches apart
  • Fall planting often more successful

Care Instructions

  • Keep soil evenly moist
  • Harvest outer leaves first
  • Provide shade in warm weather
  • Fertilize with nitrogen weekly

Seasonal Growing Calendar

Early spring

  • Direct sow 4 to 6 weeks before the last frost or start transplants indoors.
  • Cover with row cover to protect from cold snaps and leaf miners.
  • Succession sow every two weeks for continuous greens.

Late spring

  • Provide 30 percent shade cloth when temperatures exceed 80 F.
  • Keep soil moist to prevent bolting and bitterness.
  • Transition to heat-tolerant varieties or Malabar spinach.

Fall

  • Sow 6 weeks before first frost for a fall and winter crop.
  • Mulch and cover with low tunnels to overwinter in many zones.
  • Harvest through winter on milder days, allowing leaves to regrow between cuts.

Companion Plants

Strawberries
Peas
Radishes
Cabbage

These plants grow well together and can provide mutual benefits like pest control, improved soil health, and efficient space usage.

Common Pests & Issues

Leaf miners
Aphids
Slugs

Watch out for these common pests and diseases. Early detection and prevention are key to maintaining healthy plants.

Troubleshooting Guide

IssueHow to fix it
Leaf miner tunnelsRemove affected leaves promptly and cover beds with insect netting immediately after sowing.
BoltingProvide shade, keep soil moist, and switch to bolt-resistant varieties for summer production.
Yellowing leavesApply a nitrogen-rich fertilizer and ensure soil pH is neutral.

Recommended Varieties

Bloomsdale

Savoyed leaves with rich flavor that thrive in cool spring conditions.

48 days

Space

Smooth-leaf variety ideal for baby leaf harvests and resistant to downy mildew.

45 days

Giant Winter

Cold-hardy heirloom that overwinters under protection in many zones.

50 days

Succession Ideas

  • Sow spring and fall crops while switching to New Zealand or Malabar spinach for summer heat.
  • Grow a tray indoors under lights to bridge gaps between outdoor harvests.
  • Overseed between garlic or brassica rows to maximize bed space.

🍽️ Culinary Uses

Salads
Smoothies
Sautéed
Soups

💪 Nutritional Benefits

Iron
Vitamin K
Vitamin A
Folate
Calcium

Ready to Start Growing Spinach?

Check out our companion planting guides and learn about creating productive plant guilds for your garden.