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Starting in mid-May 'Colorwheel' sends up branched bloom stalks which open almost pure white. As the days progress, the same bloom fades to lavender, then to deeper lavender and finally to purple. During the lavender and purple stages, new white blooms open on the same bloom stalk. The overall effect is as many as five different colors on the same plant.
Grow in light, fertile, moist but well-drained, acidic soil.
Liable to rot in damp, heavy soils.
Provide support and deadhead to prolong flowering.
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