What is the name of this plant?

[ideasguy]

http://www.ideasforgardens.net/MysteryPlant-1/

Taken on a visit to Castlewellan Park in 2007

[Palustris]

Mahonia aquifolium at a guess. Certainly a Mahonia, but without seeing the berries it could be any one of three or four.

[ideasguy]

Thank you Eric!!

The spiky leaves certainly look like Mahonia, so I will use that name to add it to the Ideas Genie Master Database.

I've been updating Ideas Genie this past while. That involves a lot of testing before publishing the updates.
The enjoyable part is linking plants to the many photos I have taken on my visits to public gardens in the UK.