Australian bred Argyranthemum from the Sydney Plant Breeding Institute are being trialed in an increasing number of centres across Europe, USA and Australia. ‘Summit Pink’ emerged as a top performer and was submitted in the Colarado State University trials in 2001 where it won acclaim as the best introduction. It grows to a compact rounded habit, and produces an abundance of perfectly shaped single pink flowers with a pronounced yellow centre. Persistant breeding has introduced repeat flowering characteristic which dramatically extends the season. The main flush comes in early spring and flowering continues into early summer. Improved heat tolerance means that the plant enters the autumn ready also for a secondary flush of flowers. Plant availability is still limited. "Greenworld" Jeff Cooke E-mail ramm@lisp.com.au