Kohlrabi
Brassica oleracea L. convar. acephala (DC.) Alef. var. gongylodes
VarietyMaturityGrowing period
from planting
(days) *
BulbLeavesPlant density (cm)General remarks
colorshape
DVORANAvery early55whiteslightly flattened roundlow, fine25 x 20grows well in low temperatures and poor light conditions, nice for tunnels or early field growing
MODRAVA F1early60purpleflattened roundmid-high25 x 30very uniform bulbs suitable for spring and autumn field production
BLANKYTearly60purpleflattened roundlow, fine25 x 30tolerant to cracking nice for field production, including summer planting
AZURmid-early65purpleflattened roundhigh25 x 30tolerant to cracking
PURPURAN F1mid-early65purpleflattened roundmid-high 25 x 30  big bulbs tolerant to cracking suitable for spring and autumn field production
SPARTA F1mid-early70whiteflattened roundmid-high30 x 30big uniform bulbs tolerant to cracking nice for field production, including summer planting
VIOLETAlate90purpleslightly flattened roundhigh, vigorous30 x 40very big bulbs (close to 1 kg) tolerant to cracking for long-term storage
GIGANTvery late110whiteslightly flattened roundmid-high40 x 40gigantic bulbs (close to 5 kg) tolerant to cracking for long-term storage

* valid for Central Europe conditions

DVORANA
A white kohlrabi, known for its earliness and resistance to bolting. Bulbs maintain quality even under poor light conditions and low temperatures. Suitable for growing in hoophouses or under row covers for early crops or in the open field. The bulbs are flattened and attractive bright green.
MODRAVA F1
A purple kohlrabi hybrid for spring and autumn field production. Early, about 60 days from transplanting (in Central Europe conditions). The bulbs are medium-sized and flattened, and the flesh is of high quality. Tolerant to lignification and cracking, the bulbs will develop uniformly even in poor conditions.
BLANKYT
An early purple, fine-leafed kohlrabi suitable for plantation from seedlings as well as from direct sowing in early April (in Central Europe conditions). Bulbs are resistant to crackling and lignification.
AZUR
A medium early purple kohlrabi for early field plantation as well as for direct sowing from April to July (in Central Europe conditions). Medium resistant to bolting and highly resistant to cracking and lignification. Its bulb is flattened, smooth, with deep purple skin. Fine, slightly greenish flesh of a sweet taste.
PURPURAN F1
A purple hybrid for spring and autumn growing. Mid-early, about 65 days from transplanting (in Central Europe conditions) - about 5 days later than MODRAVA. A vigorous variety with attractive bulbs resistant to lignification, cracking and greening. The eating quality is excellent, quite sweet and crunchy. PURPURAN is intended especially for field growing in spring and autumn.
SPARTA F1
A mid-early hybrid, about 70 days from transplanting (in Central Europe conditions) with bigger, flattened round, bright green, crack tolerant bulbs. SPARTA is suitable for all year growing as it is tolerant to bolting, allowing for summer growing. Performs well under low temperatures and poor light conditions making it an excellent choice for late autumn sowing. Extended harvest is possible till hard frosts.
VIOLETA
A late purple kohlrabi suitable for medium-term storage. It has a very vigorous plant with strong leafstalks, dark green leaves with violet venation. Bigger bulbs are flattened round. Their white flesh is nearly fibreless with delicious sweet taste. The bulbs can be stored for 2-3 months.
GIGANT
This unique kohlrabi clearly belongs to the Czechoslovak heirloom. A late white variety producing very large bulbs (weighing 3-5 kg). Even the large bulbs will stay sweet, delicious, and tender. Excellent for winter storage. Used fresh or cooked in any size from small to large. The leaves of large plants can be eaten like cabbage. Resistant (IR) to cabbage root fly