Does Yarrow Flower All Summer. The species form has clusters of white flowers but cultivars are available that offer flowers in many colors. Sneezewort Achillea ptarmica has pure white flowers that also bloom all summer.
The best time to plant this herbaceous perennial with golden-hued flowers is in the fall. You can grow the yarrow plant in planting or hardy zones 3-8 and some cultivars of the plant will survive in zones 9 and 10. Yarrow Achillea is an easy-to-grow perennial known for its long-blooming qualities.
This plant is observed to bloom between June to September.
Jan 21 2020 Yarrow first blooms in late spring or early summer. Many species will continue to bloom intermittently into fall. Moonshine has sulphur-yellow flowers that bloom all summer. Yarrow Achillea is an easy-to-grow perennial known for its long-blooming qualities.