Approximately 315 seeds per gram. Brassica oleracea gongylodes Lot# KO27001 White Vienna Kohlrabi is a hardy biennial usually grown as an annual. It is a member of the cabbage family and has a swollen globe-shaped stem that makes it look like a turnip growing on a cabbage root. This rapidly growing member of the cabbage family produces a greenish-white enlarged stem with short tops and few leaves. Slow to bolt and early producing, White Vienna is best harvested when the stem reaches 5-7.5 cm (2-3") in diameter. Flesh is white and has a nutty flavor when eaten raw and a mild cabbage taste when cooked. Young leaves can be used in salads or steamed. An excellent companion plant amongst cucumbers, beets, celery and potatoes. Irrigation is essential for best growth. White Vienna withstands considerable frost and when conditions are not too cool or too hot, crops can be harvested as little as six to eight weeks after sowing but are best when the stem reaches 5-7.5 cm (2-3") in diameter.
Sow Kohlrabi seeds directly outdoors anytime from late April to late July. Seed should be planted no deeper than 1 cm (1/2") deep and 2.5 cm (1") apart. Space rows 30-45 cm (12-18") apart. Thin emerging seedlings to 10 cm (4") apart in the row. Plant kohlrabi in rich soil. They love moisture once established and will benefit from an ample side dressing of compost.
Planting Depth: Sow Kohlrabi seeds 1 cm (1/2") deep.
Germination: 7-10 days.
Height at Maturity: 30-50 cm, (12" to 20") tall. Spread: 30-40cm (12-16”) across.
Days to Maturity: 55-60 days for maturity.
Watering: All Kohlrabi varieties love moisture once they are established. An inch of water a week ensures good growth, whether vegetables are grown in single or wide rows. The amount of rain that falls during the week affects how much you should water your garden. Keep soil evenly moist for quick growth. Kohlrabi that goes without water will become woody.
Sun/Shade: Full Sun
Spacing after Thinning: Thin seedlings from 12-20cm (5-8”) inches apart. Space rows 45-60cm (18-24”) apart. Thinned seedlings can be transplanted to another part of the garden.
Additional Information Open pollinated-untreated seeds. Kohlrabi is ready for harvest when stems reach 2 to 3 inches in diameter. Kohlrabi will store well in the refrigerator for 1 week or for one to two months in a cold, moist place. Kohlrabi can be frozen. Avoid planting in garden area where cabbage family was grown the year before.