Ageratum houstonianum is a delightful old fashioned perennial growing fast to 60cm x 1m. It bears fluffy ball like purple flowers over a long period during the warmer months. It likes full sun to part shade in most soils and enjoys extra water in summer. Remove spent flowers to promote re-flowering. Also suitable for pots and containers.
Ageratum houstonianum in 50mm Forestry TubePerennials under 1m