General Culture:
Easily grown in average, dry to medium moisture, well-drained soils in full sun. Plants do well in average to lean garden soils and tolerate poor soils as long as drainage is good. Avoid heavy clay soils, wet soils and rich, fertile soils. Plants also tolerate hot, humid summers and drought. Plants may be cut back to basal foliage after bloom.
Noteworthy Characteristics:
‘Stephanie Cohen’ is an upright yarrow cultivar that is noted for its long summer bloom of pale pink flowers with darker centers. Flowers appear in dense, flattened, compound corymbs (to 2-4” across) from early to late summer on stems typically rising to 15-24” tall. Bold, finely-toothed, lanceolate, dark green leaves. This plant is sometimes mistakenly listed as a cultivar of Achillea ptarmica. Stephanie Cohen is an American horticulturist.
Problems: Click for detailed list of pests and problems.
Stem rot, powdery mildew and rust are occasional disease problems. Strong summer rain storms with high winds can damage exposed plantings. If stems flop or become matted, they can be cut back.
Uses:
Group or mass in beds, borders or cottage gardens.
© Missouri Botanical
Garden, 2001-2010
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