For you folks in the US, you might check the 75% off clearance garden center items left over at your local Home Depot that they always sit out by the front door. I found 10 butterfly bushes or so that used to be $25 for $6 and some change. I bought a purple and a pink one. All of them are waist high and the base stem is about 3/4" diameter. For those in the Indy area, I found mine at the Southport location. Hoping to grab a couple more soon.