Spinach seed Bloomsdale organic spinach.
(Seed Library)

Planting season: Spring, Fall, Winter.

Days to harvest: 42 days.

Growing level: Beginner.

Seed-saving level: Easy.

Fedco Seeds: item 2541.

Culture: Very hardy, spinach prefers cool temperatures. Planted as soon as the ground can be worked in spring to avoid early bolting. Minimum germination temperature 35°, optimal range 45?65°. Spinach seed will not germinate in soil temperatures above 85°. For fall crop try late July?Aug. sowing; to overwinter, sow late Aug.?Sept. Heavy nitrogen requirements, but avoid applying high-nitrogen fertilizers shortly before harvest to prevent high nitrate levels in the leaves. Pick large leaves often for heavier production. Smooth-leaved spinach is easier to wash than the semi-savoyed type and is increasingly preferred. Heat, crowding and long day-length (over 14 hours) trigger premature bolting. To retard bolting, avoid hot-weather planting, use wider spacing and irrigate or use shade cloth.

The standard crinkled-leaf spinach. Very good cold soil emergence. Much better in fall than in spring when it bolts in the heat. Recent hybrids surpass it in production and bolt resistance.