I have been trying to identify this Hebe for some time now with no luck.. The pictures are of one specimen in the grounds of Stuart House (Isle of Bute on Scotland's West coast) and are dated the 10th of May. This particular plant had an open growing habit and was approx. 1.5-2 metres tall, considerable taller than any Hebe varieties I can see for sale here in the UK.
Does anyone have any ideas?? Any help would be much appreciated!
P.S. It is possible this particular plant or it's parent was collected in New Zealand since the grounds at Stuart House were established by a botanist..
Many thanks in advance.