Organic 'Kossak F1' Kohlrabi

Organic 'Kossak F1' kohlrabi (Brassica oleracea) from the seed company Gaia, a hybrid variety with giant, tender and well-stored bulbs

The 'Kossak F1' kohlrabi develops vigorous, well-balanced plants , producing very large, spherical bulbs that can reach up to 20 cm in diameter , while retaining tender, crisp, and fine-grained flesh . The upright, robust, bluish-green foliage supports steady growth without compromising bulb quality. Even at large sizes, the texture remains soft and non-fibrous, a distinctive characteristic of this variety.

Prized for its mild and delicate flavor , this hybrid variety is equally suited to fresh eating , roasting, and salads . 'Kossak F1' kohlrabi also boasts excellent storage qualities , remaining firm and flavorful for several months when properly dried. Reliable and consistent, it is ideal for both home gardeners and market growers, particularly for autumn crops .

Companion plants: Beetroot, Bush bean, Celery, Cucumber, Lettuce, Herbs, Onion, Potato, Thyme, Nasturtium
Negative plants: Pole beans, Strawberries, Peppers, Tomatoes

Spread/Carry: Upright, compact
Plant height: 35 cm
Quantity per packet: 15 seeds
Certification: Certified organic
Special features: Hybrid variety, giant non-fibrous bulbs, excellent storage, mild flavor, ideal for autumn

Leaf color: Bluish-green
Texture/flavor: Crisp, tender, sweet flesh
Cold tolerance: Down to -9°C

Farming method

Soak the seeds in lukewarm water for up to 12 hours to promote even germination. Start seedlings indoors 4 to 6 weeks before planting out , or sow directly outdoors when conditions permit. Sow at a depth of 1.2 cm , spacing plants 10 cm apart and rows 30 to 45 cm apart, in rich, loose, well-drained soil .

Kohlrabi prefers partial sun/partial shade (level 2) and regular watering (level 2) . Consistent soil moisture promotes the development of tender, well-formed bulbs.

Harvesting and preservation

Harvest when the bulb is clearly visible above the ground and still tender to the touch. Harvesting too late can make the flesh more woody. Remove the leaves after harvesting and store the bulbs in the refrigerator for up to three weeks , or dry them for longer storage.

Usage ideas

• Consumed raw in thin slices
• Roasted in the oven or sautéed
• Incorporated into crunchy salads
• Used in purees or gratins
• Storage for extended use

The 'Kossak F1' kohlrabi stands out for its impressive size , lasting tenderness , and reliable cultivation , offering a generous and versatile vegetable. A high-performing hybrid variety that combines yield, sweetness, and excellent storage.