In article , Nick Maclaren
writes

My C. coum grows in spring and autumn, and dies down entirely in
summer and the colder winters. And its flowers and leaves appear
at different times. Most people can ignore the difference between
C. coum and C. hederifolium!


Regards,
Nick Maclaren.

Easy to grow from seed as well!
--
Janet Tweedy
Dalmatian Telegraph
http://www.lancedal.demon.co.uk