Posted: 10/04/2014 at 08:27
Hi Khakibos - as Artjak says there are several plants commonly known as Iceplants in the UK.
Do you have the latin name for the plant you want to grow?
I'm wondering if they are Mesembryanthemums http://www.amazon.com/Things-Mesembryanthemum-Livingstone-Dorotheanthus-Bellidiformis/dp/B004YRC846
in which case yes, they'll grow here after the last frost - sow them under cover with frost protection and plant out at the beginning of June, earlier if you're in the milder south-west of the UK.
Down in Cornwall and West Wales a similar-looking plant known as the Hottentot Fig - Carpobrotus edulis - is so successful it is now regarded as an invasive species and legally cannot be planted in the wild in the UK http://www.plantlife.org.uk/wild_plants/plant_species/hottentot-fig