The store will not work correctly in the case when cookies are disabled. Learn more Ok. All About Kohlrabi. Posted in: Kohlrabi. Can I Grow Kohlrabi? What is Kohlrabi Plant History? Kohlrabi Harvesting Tips Kohlrabi is best when the bulbs are about 2 to 3 inches in diameter. Harvest kohl rabi when young, between golf ball and tennis ball size. If you leave them too long they lose their flavour and tenderness. With repeated sowings, plants can be harvested from May through to November, and the leaves can also be eaten.
Green varieties, sown from mid-spring, are ready in summer, while hardier purple varieties, sown in summer, provide autumn crops. Buy now. Take action Why take action? Support us Donate Careers Commercial opportunities Leave a legacy. Join the RHS today and support our charitable work Join now.
Hot links Browse inspiration articles Buy plants online. Buy tickets. RHS members get reduced ticket prices Join now. Harlow Carr North Yorkshire. Hyde Hall Essex. Rosemoor Devon. Place stakes at the corner of the planting bed and drape bird netting over the stakes and bed to discourage the cats. I read commentre: flowering.
I put in transplants from market mid may. Spikes yellow flowered, bulb large marble size. If I cut back stems can I leave for winter over. Or do I not trim back but leave for winter crop. Do I need thick leaf grass cover for this? Kohlrabi is a cabbage-family cousin. It prefers cool weather although it will grow in warm weather—but it will need a lot of water. If the plant has flowered, it is past harvest time. Pull the plant and replant it in early spring or in early autumn.
Kohlrabi is a fast grower; you can get a couple of crops in spring and fall. There is no advantage to letting it sit in the garden over the winter; harvest it when it is big enough to eat. My purple kohlrabi have produced bulbs, but the white one have beautiful leaves but no bulbs.
Why is that? Check the days to maturity for each cultivar. If the purples are shorter days to maturity, it may be accountable to temperature; if the temperatures have been warming. Another possible reason is a greater amount of nitrogen in the soil—or more nitrogen fertilizer—where the white kohlrabi is growing.
It may take a bit of detective work—but it is like an environmental cause. When you harvest the kohlrabi do you leave the root in the ground? Will it regrow? The best strategy is to take but the bulbous stem and roots and replant seed. This will allow you the most production from your garden. I planted kohlrabi from seed very early in the spring when it was very cold. The seeds germinated great and made healthy looking little seedlings. I transplanted the seedlings in the garden, but now they will not grow.
I started the seeds more than 60 days ago and the entire plant is only one inch. Feed the plants with B1 Vitamin or a dilute solution of fish emulsion or kelp meal get these at the garden center. In the meantime, plant a second crop where you want it to grow wo it does not need moving. Companion planting is supported by the experience of gardeners and anecdotal evidence. Kohlrabi and melons are not typically considered companions. But, you can plant them close together and see what your experience is.
Get the best gardening tips straight into your inbox! Email Address:. Join our gardening family to receive the latest tips. Search Search for: Search. Grow kohlrabi for the enlarged stems--white, purple, or green.
Facebook 0 Tweet 0 Pin 0. Leave a Reply Cancel reply Your email address will not be published. Vote Up 0 0 Vote Down 0. Use about 1 inch of fertilizing material per 1 square foot of soil. In rows, space kohlrabi seeds about 2 inches apart, thinning to about 6 inches apart once seedlings have emerged.
Space rows themselves 10 to 12 inches apart. Watch a video on planting and growing kohlrabi:. How to Grow Kohlrabi Hot summer temperatures will stress the plant and hamper the growth of the bulb-like stem. If humidity is low, help to keep the soil moist by spreading a thin layer of straw or bark mulch around the base of the plant. Water 1 inch per square foot per week, unless the soil seems to be drying out sooner.
Be diligent about weeding around kohlrabi, but be careful not to disturb its roots while the plant is still young. Aphids Black rot Cabbage loopers Cabbage root maggots Cabbage worms Clubroot Cutworms Flea beetles Downy mildew Powdery mildew Thrips Aphids are a common pest of kohlrabi and other members of the cabbage family Brassicas.
How to Harvest Kohlrabi To harvest, cut the kohlrabi root off at ground level when the bulbous stems are between 2 and 4 inches in diameter. The stem should be succulent, tender, and sweet at this size. If allowed to become too large, it can become tough and bitter.
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