How to choose the best:
Kohlrabi

Touch

Smaller is better here, so try to stick to kohlrabi under 3 or 4 inches for the best flavor and to avoid a woody texture.

See

To be quite honest, even the best kohlrabi is a frankly grotesque looking thing!

Whether purpl-ish or green, loook for a pale specimen.

Some more details:

How to store

Kohlrabi does best in a humid environment, so try wrapping in a moist cloth or paper towel before storing in a plastic bag.

When it's in season

Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.