Verbena are a really good little filler plant, their masses of small delicate pink, red, purple and white flowers, each with a small white eye, seemingly smother any gaps in baskets, pots, tubs and borders. 'Quartz' F1 series has exceptional resistance to mildew, so is easy and trouble free, and performs well in hot and drought conditions too. Thriving in full hot sun, it also tolerates our more inevitable rain well too. Use dotted into mixed plantings with petunias, geraniums and busy lizzies, for a huge colour impact in summer plantings.