Tansy (Tanacetum macrophyllum) is a bold, rhizomatous perennial native to Southeastern Europe, Turkey, and the Caucasus that brings architectural presence and golden-yellow blooms to the summer garden. Growing 1 to 3 feet tall in hardiness zones 4 through 8, this erect plant produces coarsely cut foliage and dense clusters of small daisy-like flowers with white rays and bright yellow centers that bloom from July into August. It tolerates everything from poor, dry soils to richer, moisture-retentive earth, making it exceptionally adaptable for naturalized plantings and difficult garden spots where other perennials struggle.
36
Partial Sun
Moderate
4-8
36in H x 24in W
—
Low
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Dense clusters of crisp white and yellow flowers bloom reliably for eight weeks or more across summer, with finely textured, deeply lobed leaves that create visual interest long before bloom time. The plant naturally spreads by both rhizomes and self-seeding, allowing it to establish naturalized drifts with minimal intervention once established. Its genuine drought tolerance and ability to thrive in poor, neglected soils make it a low-maintenance solution for hot, dry borders, rocky slopes, or any spot where you need a perennial that asks for almost nothing but delivers prolific flowers.
Tansy serves as a striking naturalized planting for meadows, rough ground, and informal borders where its self-seeding habit and rhizomatous spread create sweeping summer displays without demanding annual replanting or deadheading to maintain vigor.
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“Tanacetum macrophyllum hails from the mountainous regions of Southeastern Europe, Turkey, and the Caucasus, where it evolved to thrive in rocky, dry terrain. The plant has a curious commercial history; for years it was mistakenly labeled and sold as Achillea grandifolia, a confusion that persisted in the nursery trade until proper identification clarified its true botanical identity. It is botanically synonymous with Chrysanthemum macrophyllum, reflecting the taxonomic reassignments that often occur as plant science advances.”