This plant is FANTASTIC!! Our garden faces south, has no shade, and gets 10 hours of brutal sun a day. Tuscan Sun says "I love this"! Although the information says 20" high, it is 24" right now, and I suspect the extra sun might be causing the extra height. It is totally heat and drought tolerant. It is covered, and I do mean covered in yellow sunflowers. They are all yellow with no other color, and this is a nice contrast to my gaillardias, rudbeckia, and helinium which are all multi-colored. It is compact, and does spread a little, but not a lot. It has surpassed my expectations and I will be using it again next year.