Why does spinach bolt early?
Spinach, Spinacia oleracea, is a cool-season leafy vegetable. Bolting is the transition toward flowering and seed production. Long days and heat can accelerate it, depending on cultivar sensitivity.
Planting time and growth
Choose sun or suitable light shade and soil that retains moisture without waterlogging. Heat can impair germination and leaf quality. Autumn or early spring suits many regions, but frost and summer duration vary locally. Thin crowded seedlings to reduce competition. Water consistently while avoiding saturated roots.
Harvest and distinctions from other greens
Harvest baby leaves or mature rosettes according to cultivar and intended use. Leaf yield and quality change after flowering begins, and extra fertilizer does not reliably reverse bolting. Swiss chard and New Zealand spinach are different species with different heat tolerances. Use clean harvest equipment. Edible leaves do not validate medicinal claims for concentrated extracts.