Spinach (Spinach oleracea)
Germination Soil Temp:
Days to Germinate
Date to sow Indoors:
Date to sow Outdoors
50 - 75 Degrees
7 - 14
Late July - August
6.0 - 7.0
60 - 65 Degrees
3 - 4 inches
Light and even
Full sun to part shade
Moderate N, P and K
Should not follow legumes
Spinach is a spring vegetable that can be served raw or cooked. It is nutrient and vitamin rich and tolerates spring frosts well. There are smooth leaf and savory leaf varieties.
Spinach can tolerate a wide range of sils. It will benefit from soil tilling and loosening.
Too much nitrogen can make leaves taste bitter. Fertilize with compost or a light rate of 10-10-10 (1.5 pounds per 100 square foot).
Till soils to loosen it and incorporate organic matter. Plant seeds directly in the garden. Germination can be accelerated if they are soaked the night before. Thin the plants to 4 to 6 inches. For a continuous supply of spinach, plant new seed every 7 days.
Spinach needs little water however they are shallow rooted. Cultivate carefully to remove weeds but not injure the roots. Insect pest include aphids, thrips and leaf miners. Row cover can exclude pests from spinach if they become a problem.
Benefits succeeding all plants. Helped by peas and beans.
Smooth: Catalina, Giant Noble, and Olympia.
Savoy: America, Bloomsdale, Long Standing, Melody , and Winter Bloomsdale.
Cut every other outer leave as soon as they are large enough to harvest. This allows room for others to grow. Plants are mature when stalks form and begin to bolt.
Provides a good soruce of carotenes, folic acid, magnesium, iron, manganese and vitamins C, K and B vitamins.
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Source: UT Extension, PB1578 - Tennessee Master Gardener Handbook