'Blue Danube' ageratum is an early, compact cultivar growing only 6-7 inches tall with icy blue-purple flowers. Excellent for tight foreground planting; color blends easily. Provided by Julia Jones, Fine Gardening #120.
Full sun, moist, well-drained soil. Deadhead regularly. Sow seed in spring at 70-75°F, cover lightly. Use in beds, borders, containers, formal gardens. Fast grower. Height 6-12 inches.
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