Agastache, also known as giant hyssop or hummingbird mint, is a group of herbaceous perennials native to North America, consisting of about 30 species.
Compared to pure species, Agastache hybrids typically feature more attractive and hardier flowers in the winter. Hybrid flowers are available in various colors, such as reds, oranges, pinks, yellows, and whites. Most hybrid plants have dense spikes of small tubular flowers with two lips, blooming from mid-summer to fall in multiple-flowered clusters atop sturdy square stems with fragrant leaves. Bees, hummingbirds, and butterflies are attracted to these flowers.
'Pink Pearl' stands out among Agastache species due to its shorter, compact growth and abundant blooms covering the entire plant. Light pink flowers on spikes and darker buds create a lovely two-tone effect from late spring to frost.
Agastache grows well in average, moderately moist, well-drained soils in full sun and can tolerate some light shade. Good soil drainage is essential. Plants won't perform well and might not survive the winter in clay soils that retain moisture. However, these plants can tolerate some dry soil and heat once established. To encourage more blooms, remove spent flowers. Agastache hybrids are usually hardy to USDA Zone 6. It's best to place the plants in protected areas, such as southern exposures, and to leave leaves and flower stems over winter for additional protection. Using sandy or gravelly mulch can help protect the plants and prevent rot.
