- You will get 300 Seeds of Carrot Imperator Heirloom Vegetable Seeds. - Sunlight: Full Shade, Full Sun. - Life Cycle: Perennial. - Watering: Medium. - Imperator 58 Carrot Seeds. - A Danver carrot that is the garden standard carrot. Imperator 58 carrot grows to 9? long and 1 1/2? wide. It has a very sweet and tender flavor. Smooth, large, fine-grained, long, tapered roots. Imperator 58 carrot performs best in loose, friable soils. - Plant Imperator Carrots oe" deep and 2" apart in full sun.Full sun and loose soil are key ingredients when growing Imperator carrots. The soil needs to be loose enough to allow the root to form correctly; if the soil is too heavy, lighten it up with compost. Sow the carrot seeds in the spring in rows that are about a foot (30 cm.) apart and cover them lightly with soil. Firm the soil gently over the seeds and moisten the bed.