Succulents on Cliffs at Elgol, Skye

Succulents on Cliffs at Elgol, Skye

Observation - Succulents on Cliffs at Elgol, Skye - UK and Ireland. Description: I was quite surprised to find these succulent (? Mediterranean) plants growing wild along the cliffs at Elgol where the temperature dips in winter to minus twelve Centigrade. I have seen similar plants on the Dingle Peninsular in SW Ireland. Are these nat

I was quite surprised to find these succulent (? Mediterranean) plants growing wild along the cliffs at Elgol where the temperature dips in winter to minus twelve Centigrade. I have seen similar plants on the Dingle Peninsular in SW Ireland. Are these natural or horticultural escapees?