Planted it early indoors - and it grew well enough that it was getting too big for the indoor greenhouse area. The Outdoor greenohouse (mid tunnel) I've shortened to 10' secitons this year - so we planted it out. Not all fit in the greenhouse but its been warm enough that we planned to put hte rest out without a greenhouse (Kohlrabi is a brassica, and therefore somewat freeze tolerant.)
We also planted Pac Choi, Mizuna, Cabage, and lettuce inside - in addition to another batch of strawberries. (The first batch of 18 seeds yielded 12 plants - which are growing fabulously!
Also the wintergreen grew!!