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Growing kohlrabi can be a rewarding experience, but hot weather often triggers bolting, which causes the plant to go to seed prematurely. This not only affects the taste but also reduces the harvest. Understanding how to prevent bolting is essential for successful cultivation during warm months.
What Is Bolting in Kohlrabi?
Bolting is the process where a plant prematurely produces a flowering stem, often in response to stress or environmental cues. In kohlrabi, this results in a woody, bitter-tasting bulb and a decline in edible quality. Hot weather is a common trigger for bolting in this crop.
Strategies to Prevent Bolting During Hot Weather
- Choose the right variety: Select heat-tolerant kohlrabi varieties that are bred to resist bolting.
- Plant at the right time: Sow seeds early in the season so plants mature before the hottest weather arrives.
- Provide shade: Use shade cloths or plant in partially shaded areas to reduce temperature stress.
- Maintain consistent watering: Keep soil evenly moist to prevent stress caused by drought, which can promote bolting.
- Mulch around plants: Mulching helps regulate soil temperature and retain moisture.
- Ensure proper spacing: Adequate spacing improves air circulation and reduces heat buildup around the plants.
Additional Tips for Success
Monitoring weather forecasts and adjusting planting schedules accordingly can significantly reduce bolting risks. Additionally, harvesting kohlrabi promptly once mature prevents plants from bolting due to prolonged stress. Regularly inspecting plants for early signs of flowering allows for timely intervention.