You can either direct seed or transplant your kohlrabi. If you are planting seeds directly in the ground, space them 1 inch apart and plant 1/4 inch deep in rows 12-18 inches apart. As they grow, thin them to 4 inches apart. If you plan to transplant them to the garden, start your seeds indoors 4-6 before your last predicted frost. Plant outdoors when the soil can be worked and space the plants 4 inches apart. They will mature about 55-70 days after they are transplanted.
There are over 8.2k seeds in an ounce of White Vienna kohlrabi.