This is a good year for rhubarb here in Calgary:  we’ve gotten plenty of moisture and the temperatures have been relatively cool so far.  I don’t grow rhubarb myself, but there is a plant at the community garden where I rent a plot.  Because there are 27 plotholders, one rhubarb plant doesn’t go very far, so out of fairness, a system of rationing has been implemented.   Late last week I picked my allowance, and mulled over how best to use it.  My go-to rhubarb recipe has always been a rhubarb cake from the Purity Cookbook (you can see a modified version of this recipe on my blog Blooms and Spoons, over at Grit.com), but this time I was looking for something a little different.  I had a refreshing drink in mind, but I seem to have misplaced my recipe for Rhubarb Fizz, and the ones I’ve found (so far) on the Internet aren’t the same. The organic lemons and strawberries I had in the fridge…