| Planting Ageratum Seed |
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| Start the Ageratum flower seeds indoors 6 - 8 weeks before the end of frost season. Transplant outdoors after danger of frost. For areas with a long growing season, Ageratum seeds can be started directly outdoors in a prepared seedbed after all danger of frost has passed. Blooms are extraordinarily long-lived, dead heading is necessary, yet infrequent. |