It is a vegetable. It looks similar to a beet, but it is white.The taste,to me, is a blend of cabbage and potatoe.
kohlrabi is a biennial, meaning it will flower (and produce seeds) in its second growing season. So, if this is the first year you've planted it, you won't see any flowers, or have any seeds....
All of it - much like a swede - you can discard the skin if you like.
Yes, kohlrabi may be eaten raw.
With a pressure canner