Small, yellow flowers with red-brown anthers. Offered free by Unwin's Seeds in the UK with the BBC 'Gardeners' World' magazine in 2001. Suitable for growing in hanging baskets. According to the International Clematis Register and Checklist "about 1989, Unwins Seeds in the UK began to offer Sun Star. Sun Star is a seed line from 'Helios' and the seedlings cannot be considered to be identical to 'Helios', nor can it be considered to be a cultivar name;... [it] has no standing."

Group:	Tangutica group
Approximate height:  The heights given here are for guidance only. Much depends on the growing conditions of individual specimens.	1.5 - 2.0 metres
Flowering period(s):  Warning: the months here are approximate for the northern hemisphere: users south of the equator should add approximately 6 months so that July becomes January etc.	Jul Aug Sep
Aspect:	Any aspect
Pruning:	Light prune (Group 2)
Other name(s):	Wrongly: 'Sunstar'