Ever gnaw on a raw Rhubarb stem? I used to love that, when I was a kid. Especially the tender thin stems. Huge flavor, tangy, bitter, spicey.
While "researching" this post, I learned that it's commonly done in Turkey and Iraq. Our garden rhubarb came from China. The leaves are poisonous. There are lots of types of rhubarbs, most inedible.
Rhubarb is the most reliable edible perennial that you can have in your northern garden. Just throw some manure on them every Spring, and you're done. The only problem I have had with them (my last patch) was that the plants kept going to flower and seed without producing new stems. I guess I should have cut off the flowering stems sooner.
How to make a rhubarb patch.
A few fine Rhubarb recipes (don't talk to me about Strawberry-Rhubarb Pie which is an insult to both Strawberry and Rhubarb).
Rhubarb Crisp
Rhubarb Tart
Rhubarb Custard Pie