Early Purple Vienna Kohlrabi (Heirloom, 60 Days)
The Early Purple Vienna Kohlrabi is an Heirloom pre 1860. According to the 1930 D. M. Ferry catalog: “Very early with small top, the leaf stems being tinged with purple. Bulbs of medium size, purple; flesh white. Desirable for forcing and early outdoor planting.”
Brassica oleracea var. gongylodes
Germination: 7-10 days
Germination Temperature: Optimum soil temperatures 60-75ºF.
Seed Sowing Depth: 1/4" deep
Sowing Outdoors: Starting in spring when soil temperature reaches 60 ºF. Sow seeds 1-2" apart, thin 3-8” apart. The larger the bulb size the more space. Sow in mid to late summer for fall harvest.
How much does a packet plant: 4-6 foot single row
Harvest: Bulbs from spring plantings under 2-3” for the most tender and sweet bulbs. Fall plantings can survive frosts and can be harvested when they are larger.
Tips: Plant Early Purple Vienna Kohlrabi in fertile soil, and amended with compost before planting if needed. Grows best in the cooler weather of spring and late summer. Summer heat makes the bulbs woody and dry. Adequate moisture is needed for optimum growth.