Ageratum

A brand new series bred for earliness and uniformity, Cloud Nine varieties are up to seven days earlier than competing varieties and are ideal to grow together. Both Blue and White have smaller leaves a more uniform habit making for a much more uniform end product. ‘Cloud Nine Blue’ has darker flower buds, giving a more attractive appearance than varieties with pale buds.

Use a well-drained, peat-based growing mix with pH of 5.8-6.2 and EC less than 1.2. Practice a good wet/dry moisture cycle but avoid wilt as this can cause leaf scorch.

Day temperatures should be 69-73° F; night temperatures can be 62-65° F. Light levels should be maintained at 2,500-3,000 foot-candles. Ageratum is a facultative long-day plant, so HID lights can be used to extend day length beyond 14 hours and shorten crop time, or just as a boost during periods of low light.

Feed once per week with 100- to 150-ppm nitrogen from a balanced fertilizer, such as 15-5-15 or 17-5-17. Overfeeding can promote leafy plants and delay flowering, so avoid excess fertilizer.