Judging by the parentage, this should be hardy to Z4.
The Royal Horticultural Society has granted this cultivar its covete...Read Mored Award of Garden Merit (AGM).
A self-sown seedling found by David Browne in his Northumberland garden, Coombland Garden, and named for his son. Its parentage is thought to be G. wlassovianum x G. palustre (note spelling).
According to the originator, dappled shade is preferred (in the UK).
Judging by the parentage, this should be hardy to Z4.
The Royal Horticultural Society has granted this cultivar its covete...Read More