Botanical Name: Spinacia oleracea (hybrid)
Days to Maturity: 28 – 60 Days
Native: Southwest Asia
Hardiness: Frost-tolerant annual. Very cold hardy; fall-sown plants may overwinter even in climates with sub-zero temperatures.
Plant Dimensions: 6″ – 8″ tall and wide
Variety Information: Rich green, rounded to oval leaves, smooth with a slight savoy. ‘Anna’ is resistant to downy mildew and bolting.
When to Sow Outside: RECOMMENDED. 4 to 6 weeks before your average last frost date, and when soil temperature is above 40°F; ideally 50°–75°F. Successive Sowings: Every 3 weeks until 4 weeks before your average first fall frost date. If mulched, spinach can overwinter in sub-zero temperatures. Soil temperatures above 85°F halt germination. Mild Climates: Sow in fall for cool-season harvests.
When to Start Inside: Sow indoors any time of year for baby greens, with indoor temperatures 60°-75°F. Successive Sowings: Every 2 weeks for a continual supply.
Days to Emerge: 5 – 10 Days
Seed Depth: ½”
Seed Spacing: ¾”
Thinning: Not necessary