Moisture range
40–60%
Days to maturity
37–50
Light
Full sun
Growing Degree Units
525 · base 40°F
When to plant spinach in your zone
Indoor-start, transplant and harvest dates calibrated to your climate.
Growing notes
Spinach is day-length sensitive and will bolt in response to increasing day length, especially in hot weather or drought conditions. For best quality and to delay bolting, provide adequate water - one inch per week if not supplied by rain.
Harvest signs
harvest single leaves as soon as they reach a usable size
▶Planting reference— Depth, spacing, pH, light
▶Pests & diseases— cutworms, slugs, leafminers
Companions & antagonists
Plant near:StrawberryPeas
Common questions
How much water does spinach need?
Spinach is water-sensitive — shallow roots and a steady thirst. Keep soil moisture in roughly the 40–60% range and don't let it dry out fully, or growth stalls and leafy crops turn bitter.
Can I grow spinach in a raised bed or container?
Yes — spinach does well in raised beds and is happy in a decent-sized container too, as long as drainage is good.
Does spinach come back every year?
No — spinach is an annual. It completes its life in one season, so you replant it each year.