Spinach is a hardy cool-weather plant that withstands winter
conditions in the South. In most of the North, spinach is
primarily an early-spring and late-fall crop, but in some areas,
where summer temperatures are mild, it may be grown continuously
from early spring until late fall. It should be emphasized that
summer and winter culture of spinach is possible only where
moderate temperatures prevail.
Spinach will grow on almost any well drained, fertile soil
where sufficient moisture is available. It is very sensitive to
acid soil. If a soil test shows the need, apply lime to the part
of the garden used for spinach, regardless of the treatment given
the rest of the area.
The application of 100 pounds of rotted manure and 3 to 4
pounds of commercial fertilizer to each 100 square feet of land is
suitable for spinach in the home garden. Broadcast both manure and
fertilizer and work them in before sowing the seed.
For tractor cultivation, the rows of the garden should be not
less than 24 inches apart; when land is plentiful they may be 30
inches apart. For wheel-hoe or hand work, the rows should be 14 to
16 inches apart. Spinach may be drilled by hand in furrows about 1
inch deep and covered with fine earth not more than 1/2 inch deep,
or it may be drilled with a seed drill, which distributes the seed
more evenly than is ordinarily possible by hand. Thin the plants
to 3 or 4 inches apart before they crowd in the row.
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