Hi Diane,
Welcome to the National Garden Association forums.
I recommend Miracle-Gro Tomato Food for nearly everything. It is a water-soluble formula that you can apply as a foliar feed, a drench, or pour it around on the ground. It is reasonably complete and has more Magnesium than most complete formulas. I use it for my zinnias and my son uses it for tomatoes, (who knew?) egg plants, and peppers. As they say, use it according to the label. I dilute it one tablespoon per gallon for my zinnias. It comes with a little green plastic measuring spoon that provides the right amount for the "standard" garden watering can (a little over a tablespoon).
If I weren't already breeding zinnias, I probably would be breeding Cosmos. They come in a variety of colors, flower forms, and plant heights.
ZM (not associated with the Miracle-Gro company)
