Leafy greens · cool season
Spinach
Spinacia oleracea
Bolts the moment Ohio hits 80°F. Treat it as a short, lush spring and fall crop.
- When to plant in Ohio
- Direct sow March and again late August to mid-September
- Harvest window
- April–May; October, and overwintered plants in March
- Days to maturity
- 37–50
- Spacing
- 3–4 in.
- Light
- Full sun in spring and fall
How to grow it
Sow ½ in. deep as soon as soil thaws. Bloomsdale Long Standing is a standard. A September sowing under low tunnels often overwinters for an early March cut. Keep soil moist; dry plants get sandy and bolt.
Related leafy greens
Leaf lettuce 30–45 for baby; 45–55 full
Romaine lettuce 60–75
Kale 50–65
Swiss chard 50–60