Black Nebula is deep purple through and through. (OP.) 75 days Black Carrots are a much older variety than their orange cousins, having originated in the Middle and the Far East long before orange and yellow Carrots were cultivated. Their purple color comes from a high concentration of anthocyanins, which are powerful antioxidants.
Direct sow into light well-drained soil. Sow very thinly approx 10mm deep in drills 30cm apart. Water only to keep the soil moist, excessive water encourages leaf, not root growth. Germination takes 15- 23 days. The first thinning should be 1″ to 2″ apart. Later on, thin as desired depending on the variety. Carrots are at their sweetest when small, so harvest by gently pulling them out while holding the base of the greens.