|Are there any small yellow flowers like alyssum in either yellow or red to match sunflowers?
|Off the top of my head, I can't think of a single thing in yellow (or red) that would be similar to alyssum and bloom with sunflowers. Some annual plants in yellows for summer bloom would include lantana, marigolds, zinnias, petunias and portulaca. Dahlias and gazanias are available in reds and yellows. I'm sorry I can't be more helpful.