Apart from the need for cool temperatures and full sun, kohlrabi is not particularly demanding. “Anything you can do will help ensure steady, consistent growth,” says Reiners. “Too much stress on the plant – such as drought or high temperatures – can affect the bulb, causing it to become woody or spicy like a radish. With even temperatures and consistent soil moisture, kohlrabi will remain tender and light.”
The best way to provide those stress-free conditions is to make sure the soil has plenty of organic matter (like compost , grass clippings or well-rotted manure) that slowly and steadily release nutrients and moisture.
Kohlrabi Fast Growing Tips
- Sow kohlrabi seed in the garden 3 to 4 weeks before the average date last spring frost.
- Kohlrabi grows best in cool temperatures between 40°F and 75°F (4.4°C and 23.9°C).
- Kohlrabi requires 45 to 60 days to reach maturity. In warm winter regions, plant kohlrabi in late summer for winter harvest.
- Kohlrabi can withstand early autumn frost.
- Kohlrabi fruit: plant 4 to 5 kohlrabi per a family member.
- Put kohlrabi in full swing.
- Grow kohlrabi in well-worked, well-drained soil rich in organic matter.
- Work 2 inches (5cm) of aged compost into the soil before you start planting.
- Kohlrabi prefers soil within the 5.5 to 6.8 range. Side dress kohlrabi with old compost at mid-season.
- Starting indoors: Kohlrabi seeds can be started indoors or in a cold frame or plastic tunnel.
When should you start growing Kohlrabi?
The best time to grow kohlrabi is usually between the middle of March and the end of May.
Note, however, that this is only a rough indication and that the best start date for growing your kohlrabies also depends on the overall climate conditions in your region.
B) White Kohlrabi
What is the best fertilizer for growing Kohlrabi in the USA?
There are several things to consider when choosing a fertilizer for Kohlrabi. One important factor is the type of soil in which the Kohlrabi will be grown. Another thing is the stage of growth the Kohlrabi is in when the fertilizer is applied. For example, if you are growing Kohlrabi in sandy soil, you will need a different fertilizer than if you are growing in clay soil.
And if you are using a fertilizer during germination, you will need a different formula than applying it during the vegetative phase. Kohlrabi does not require much fertilizer but does benefit from additional nitrogen during the growing season. Apply an all-purpose fertilizer before planting and side-dress plants with compost or manure every 4-6 weeks during the growing season.
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