Carrots were first cultivated in Central Asia, where early roots were often purple, yellow, red, or white rather than orange. Over centuries, gardeners selected them for sweeter flavor, smoother roots, and a wide range of shapes and colors. The familiar orange carrot became especially prominent in Europe, but older colors remain an important part of the crop’s history.
Carrots are cool-season biennials grown for their roots during the first year. They perform best in loose, stone-free soil with steady moisture and little competition. Direct sow the fine seed, keep the surface moist through germination, thin carefully, and harvest once the roots reach the size and color expected for the variety.
Growing Guide
Timing
Sow carrots outdoors about 2 weeks before the average last frost, once the soil has warmed to roughly 45°F. They tolerate light frost and grow best while roots mature in cool to mild weather.
For a steady harvest, sow small plantings every 2–3 weeks. Time late-summer sowings so the roots mature near the first fall frost.
Carrot seed can germinate in cool soil, but emergence is slow. Hot weather during root development can reduce flavor and quality, so use afternoon shade or delay sowing when summers are severe.
Sowing & Starting
Direct sow seeds ¼–½ inch deep in early spring. Later sowings may be planted slightly deeper where the surface dries quickly. Scatter seeds thinly and cover with fine soil, compost, or vermiculite.
Keep the seedbed consistently moist until seedlings emerge, which often takes 10–17 days or longer in cool conditions. A light cover of burlap or row fabric can help retain moisture; remove it as soon as seedlings appear.
Thin young plants to about 1–2 inches apart for most varieties. Short finger types may be spaced more closely, while broad or storage carrots need more room. Clip unwanted seedlings at soil level if pulling might disturb nearby roots.
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