Double Diamond Pearl Yarrow is a Victorian-era heirloom relative of common yarrow that transforms gardens into pollinator havens with its abundant white pompoms. This frost-hardy perennial thrives in zones 3 through 10, reaching 24 to 36 inches tall and producing cut flowers reliably around 120 days after planting. Beyond its ornamental charm, it serves as both a medicinal herb and a magnet for beneficial insects, earning its place in gardens across North America.
24
Full Sun
Moderate
3-10
36in H x ?in W
—
Moderate
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The white pompoms appear in such profusion that they seem to glow above the foliage, attracting pollinators with irresistible appeal. Its dual identity as both a decorative cut flower and a historically valued medicinal plant gives it purpose beyond the purely ornamental. Growing 2 to 3 feet tall, it commands attention in the garden while remaining low-maintenance and hardy across a broad hardiness range.
Double Diamond Pearl Yarrow thrives in multiple roles within the garden and home. Its primary strength lies as a cut flower, with abundant white pompoms ideal for fresh arrangements and dried bouquets. Beyond floral displays, it functions as a pollinator attractor that supports beneficial insects, and continues the plant's historical role as a medicinal herb with traditional applications.
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Sow seeds indoors in a controlled environment maintained at 60 to 70 degrees Fahrenheit, starting 6 to 8 weeks before your final spring frost date. This timing allows seedlings to mature indoors before transplanting outdoors after frost danger has passed.
Harden off seedlings by gradually exposing them to outdoor conditions over 7 to 10 days before transplanting. Move plants to the garden after the last frost date when soil has warmed. Space plants 24 inches apart in full sun, in well-draining soil with a pH between 5.5 and 7.5.
Harvest Double Diamond Pearl Yarrow flowers for cutting when the white pompoms have fully opened and feel firm to the touch, typically around 120 days after planting. Cut stems in the early morning when moisture levels are highest, selecting flowers at their peak before they begin to fade or brown at the edges. For dried arrangements, harvest at the same stage and hang bundles upside down in a cool, dark, well-ventilated space until completely dry.
Deadhead spent white pompoms regularly throughout the growing season to encourage continuous flowering and maintain a tidy appearance. Cut back the entire plant to 3 to 4 inches above ground in late fall or early spring to promote vigorous new growth.
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“The Pearl yarrow gained prominence during the Victorian era, when gardeners prized its refined white blooms for both garden display and cut flower arrangements. The plant's genus name, Achillea, references ancient Greek mythology and the historical medicinal uses attributed to the herb, said to have been employed by soldiers in the armies of mythological warriors. This cultivar represents a lineage of ornamental and medicinal yarrows that captured the imagination of 19th-century horticulturists and has endured as a garden staple ever since.”