Carrots like deep light soil which does not have to be rich. In fact, excess Nitrogen causes branching and hairy, fibrous roots. Seeds of carrot may germinate at low temperatures but the germination period is shorter at higher temperatures and a soil temperature of at least 10 ºC is therefore recommended. The pH value should 6.5 to 7.5 for best results. Potassium promotes solid, sweet carrots. Wood ashes contain soluble potassium which reaches the plant quickly. Water well after sowing to promote germination and good root growth. Keep covered with floating row cover to keep out the carrot rust fly. Plant in early spring and again in July to harvest from October throughout the winter. Plant 1/2" deep and keep moist to germinate which may take 3 weeks. Thin.