Ageratum (Floss flower) Ageratum 'Blue Mist' New for 2000! picture: ©copyright Graham Rice Ageratum is one of the most prolific and long-flowering of the relatively few blue-flowered annuals. This new addition to the range is very even, all the plants will be almost exactly the same size; many varieties produce plants in such a variety of sizes that they're very disappointing when used as an edging. 'Blue Mist' also makes attractive rounded plants, with flowers on the sides of the plant as well as on the top.   Type: Half-hardy annual Height: 6-8in/15-20cm Season: Early summer to first frosts Situation: Full sun to partial shade, good soil. Source: Suttons Seeds (UK)  Back to Ageratum   ©copyright 1998 Graham Rice. All Rights Reserved. All Images Digitally Watermarked.