Can be sown early, after danger of heavy frost is over. Sow every two weeks thereafter for continuous harvest, or simply sow a second crop in midsummer for fall harvest. In frost free areas, sow in fall. Carrots do not like to be transplanted and are best sown directly into the garden bed. Sow carrot seeds in deep, well-worked soil in full sun after frost in spring. Straight roots require soil that is light, loosened deeply, and free of stones, so prepare a carrot planting thoroughly. Consider using a soil amendment light sand if soil is heavy. Deep, consistent watering and soil well-enriched with compost also helps form high quality carrots by encouraging lush leafy tops that shade the roots, helping prevent "green shoulders."
Sow thinly in rows 12" apart and cover with 1/2" of fine soil. Firm lightly and keep evenly moist. Seedlings emerge in 14-21 days. Since seedlings are fine-leaved it may be beneficial to plant radish along with your carrot seed. The radishes will be harvested well before carrots form and act as a guide to the carrot row.
How to Grow
Thin carrot plants to stand 1" apart when seedlings are 1" high.
To make harvesting easier, soak carrot bed with water before pulling. Twist the tops off while pulling the roots up. You can leave carrots in the ground after the first frost. In cold climates, pull carrots up before the ground freezes. In warm climates, you can harvest carrots all winter.