Rhubarb blooms are really pretty when they open but I want my plants to continue to produce for a little while longer so I broke it off. The kids brought it into the house and we'll see if we can force it to open in a jar of water :)
The leaves of the plants are poisonous so you can't eat them but they make a wonderful natural insect repellent for deterring cabbage worms, aphids and other things. Just throw a bunch of leaves into a pot, cover with water and bring to a boil. Pour the strained liquid into a spray bottle and treat any plants that have buggy problems!