What, Exactly, Is That Plant?

SO MUCH greenery is coming in, so I took some photos for you!  First the ones that I could identify and then our mystery plant.

Here’s is our rhubarb, already going strong:

The lilac bush growing leaves:

Chives:

The few cherry bushes that survived rabbits this winter:

And:

The lavender that has come back:

And… whatever this is?  It grew in a section where I dumped all the freebie seeds due to lack of motivation.  I THINK it’s Kohlrabi, but I’m not entirely sure:

Whatever it is, it’s happy growing!

How is your spring looking?  Is everything budding?  Inquiring minds want to know!  *smile*