However, occasionally cutting some older stems back can promote new growth, help keep plants compact, and stimulate more flowers. Not all selections of Agastache are reliably hardy in our growing ...

This year at the Southern Plant Trials, I fell in love with the herbaceous perennial agastache. This perennial stood out to me with its profuse blooms and delightful fragrance. At each location I ...

“It has a very long bloom time, at least three months, depending on when the first hard frost is. It’s also unique in that there are two parts to the agastache’s flower, and the calyx on ...

Agastache rugosa. The result is a supercharged perennial that will yield glorious lavender-blue spikes of blooms all season until it is time for winter rest. During this long period of bloom ...

Botanical name/common name: Agastache rupestris/”Sunset” hyssop, Licorice mint hyssop Color specifics: Coral and lavender flowers, fine-leaved gray-green foliage Height: 3 to 4 feet Fragrance ...

What: Agastache ‘Blackadder,’ also known as giant hyssop or hummingbird mint, features dark red-purple flower spikes peppered with tiny mauve blooms. These are a favorite of hummingbirds ...

Agastache blooms on 4-inch-long spikes that are covered with small lavender-blue flowers. The spikes grow longer throughout the season as new flowers continually emerge. These blooms attract a ...