'Queen Nectarine' has mauve calyxes that hold soft peach blooms. This is noticeably taller than 'Royal Raspberry'. The best results are obtained in full sun on well-drained soils. Agastache is a plant that is well-suited for arid soils. It looks great in rock gardens and xeric container plantings, where it will draw bees, butterflies, and hummingbirds. One of the simplest perennials to cultivate is this one.