Everything You Need To Know for Starting And Growing Kohlrabi Successfully
Kohlrabi is one of the weird looking vegetables in the garden.
It can be grown rather easily if you follow a few simple guidelines.
The first is that this is a very greedy feeder and will really benefit
from adding a ton of compost to the soil where you intend to grow it.
Feed every two weeks with a compost tea or fish emulsion to keep it
growing strong. It also likes to grow steadily (like cauliflower does)
so avoid dry spells if possible by getting out the hose. Actually,
you'll find it you do stress it, the roots will become woody and you
won't want to eat them. So water and feed this plant for decent edible
crops or don't bother.
You can start it indoors if you want a really early crop. Sow the first
two weeks in March for a late April transplanting date outdoors.
It will require a soil temperature of 70F to germinate and then a much
cooler 55-60F growing on temperature to prevent leggy growth.
Sow the seed approximately one quarter inch deep. Each seed should be
transplanted into its own small pot after it has three true leaves and
grown on until transplanting outdoors.
With direct sowing, you can put it into the ground from early May until
July (again one quarter inch deep) and it is often recommended that you
sow several crops several weeks apart to get tender roots on an ongoing
Sow seeds at one to the inch, when they start to grow and get a little
crowded, thin to one plant every
four inches. Harvest the small roots (eat them) and thin out as the
plants get larger to one every foot.
Harvest all roots when they are smaller than a baseball (2 to 3 inches
diameter) as the larger roots can get woody. And do harvest the roots
before fall nights get too frosty; this plant doesn't like cold
temperatures in the fall.
You might see some flea beetles on kohlrabi but they are easily
controlled by techniques listed on the organic controls pages.
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