We are not familiar with any sedum cultivars called ‘Holly’, but there are so many sedum varieties out there! There are quite a few cultivars that have a vaguely holly-shaped leaf, though they are not spiky like a holly leaf. Most of the upright varieties fit this description.
Alternatively, could the plant be sea holly (Eryngium)? It’s not related to sedum, but it does have a holly-like leaf. (And it is quite spiky!)
We are not familiar with any sedum cultivars called ‘Holly’, but there are so many sedum varieties out there! There are quite a few cultivars that have a vaguely holly-shaped leaf, though they are not spiky like a holly leaf. Most of the upright varieties fit this description.
Alternatively, could the plant be sea holly (Eryngium)? It’s not related to sedum, but it does have a holly-like leaf. (And it is quite spiky!)