This purple version of Raab is popular in the North. An alternative way to grow it is to plant in mid-summer, over-winter it, and then get 2 months of delicious cuttings the following spring. High in vitamins with a tangy flavor. Leaves are edible.
Germination- 3-10 days
Indoors - 4-6 weeks before last frost and 1/4” deep with soil temperature at 65-75 degrees. Liquid fertilize seedlings every 7-10 days. Transplant out just before last frost.
Outdoors – Early spring until mid summer for fall crops. Plant 1/2” deep and 6” apart. Thin seedlings to 18” apart.
Harvest- Pick when heads are tight before flower buds starts to open. For varieties that produce side shoots keep picked for a longer production
Tips - A heavy feeder transplant/direct seed into well composted soil and side dress when buds begin to form.