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Spinach

Last updated Mar 15, 2025

# Germination

Best method: Styrofoam plate method - Variation of Paper Towel Germination

ItemAmtNotes
Length5-10 days
Temperature32 and 65°Fspinach is a cool weather crop
Heating Padno
Grow Lightyes - 12 hours/day once sproutedBlue light enhances chlorophyll production
Grow Medium - rockwool, coconut coir

# Compatible Systems

Type✅ / ❌Notes
Kratky
Deep Water Culture
Ebb and Flow
Nutrient Film Technique
Drip System
Aeroponics
Fogponics
 

# Time to Maturity

45 days

# Harvesting

Can harvest outer leaves

# Optimal Conditions

xValue
pH6.5-7 (some say 5.5 - 6.5)
EC1.8-2.3 (0.65 for seedings)
Lighting6-8" , 10-14 hours of light per day
Temperature59°F to 68°F

# Nutrients

Nitrogen focused

# Care

Yellowing leaves may indicate nutrient deficiency Spinach may bolt if temperatures are too high

# Varieties

Bloomsdale Longstanding 300

# Companion plants

# Notes