Kossack Kohlrabi F1 Hybrid
Best choice for gardeners seeking high-yield, long-storing cool-season vegetables.
Discover the Kossack Kohlrabi F1 Hybrid, a premium seed variety from Pinetree Garden Seeds. This F1 hybrid is celebrated for its impressive ability to produce giant bulbs that remain remarkably tender, even when mature. Its light green skin encases sweet, white flesh, and the edible leaves can be prepared like collard greens. Kossack Kohlrabi offers excellent storage potential, lasting over a month in cool conditions, and is a reliable producer, especially in cooler growing seasons. It thrives in fertile soil and is ideal for both spring and fall harvests.
$4.05
Owner Satisfaction
4.7
/ 5
Category Rank
270
/ 5876
#270 in Seeds & Seed Tape
Price vs Category Average
-62%
Below average
Botanical Name
.
/ Brassica oleracea var gongylodes
Who it's for
- Market growers needing uniform, predictable crop development
- Gardeners seeking maximum harvest volume from limited plant counts
- Home cooks prioritizing tender texture and sweet flavor profiles
Who should skip it
- Small households struggling with large-batch food processing
- Urban gardeners with limited square footage for wide spacing
- Farmers in regions with short, frost-prone growing seasons
Performance breakdown
Bulb Size Potential
Genetics allow for impressive, oversized bulbs without sacrificing internal texture.
Storage Longevity
Maintains crisp, usable quality for weeks when stored in cool conditions.
Culinary Versatility
Dual-purpose harvest provides both sweet bulbs and nutrient-dense edible greens.
Cool Weather Reliability
Robust hybrid vigor ensures consistent performance during challenging shoulder seasons.
Germination Consistency
Predictable sprouting window simplifies the early stages of the growing cycle.
Space Efficiency
Large plant footprint requires dedicated garden space rather than container setups.
Key Specs
Botanical Name
Brassica oleracea var. gongylodes
Days to Maturity
80 Days
Seed Count
50 seeds per packet
Seed Sowing Depth
0.25 inches
Germination Time
7-10 days
Optimum Germination Temperature
60-75ºF
Planting Season
Spring, Fall
Seed Form
Loose Seeds
Features
- Produces giant, tender bulbs
- Sweet white flesh
- Edible leaves like collard greens
- Excellent storage quality
- Reliable producer in cool weather
- High germination rate
- F1 Hybrid vigor
What customers say
Customers consistently praise the Kossack Kohlrabi for its exceptional quality, specifically noting the impressive size and remarkably tender texture, even when harvested late. The primary theme is ease of use and reliability. Gardeners appreciate that this variety resists bolting and remains sweet and nonwoody, a common issue with other kohlrabi types. This reliability ensures a successful harvest, making it a favorite for both experienced growers and beginners seeking a high yield and superior flavor. The consensus highlights its dependable performance and excellent culinary results.
Know before you buy
This variety is specifically bred to produce giant bulbs. Unlike many other kohlrabi types that turn woody when they grow large, the Kossack remains tender and sweet even at its full mature size.
Yes, the leaves are entirely edible. They have a flavor and texture similar to collard greens and can be prepared using the same cooking methods.
Kossack Kohlrabi has excellent storage potential. When kept in cool, appropriate storage conditions, the bulbs can remain fresh for over a month.
It is a versatile producer that thrives in both seasons. Because it is a cool-weather crop, it performs best when it can mature during the milder temperatures of spring or fall.
No, this variety is not recommended for container gardening. It requires the space and consistent nutrient access found in fertile garden soil to reach its full size.
Sow the seeds at a depth of 0.25 inches. With proper soil moisture and temperatures between 60-75ºF, you can expect germination within 7 to 10 days.
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