Trachycarpus fortunei Frosty is a pot grown fortunei. The seed of the Frosty is taken from specially selected mother plants. Cultivated in Northern Europe, the Frosty is very resistant against most winters, making them one of the most ideal palms for outside in your garden. They have been hardened already and will continue to grow well in your garden. well in your garden. As they are not grown in a clay clump, they will root better and faster, making them more suited against our winters.