There are a few dwarf varieties that have more color; however they are rare, and in my experience do not perform well. One 'Dwarf Orange' that I had for years would just give me a little bloom here and there; I finally got rid of it. There is also a Dwarf Rainbow that is an even poorer performer. But many growers are working on getting more dwarf varieties on the market since there is clearly a demand for them.
You could talk to Florida Colors nursery; they may be able to help you.
