The haul is part of a three-year project to grow 1.5 million native trees from seed. Many of the species included have unique genetics and date back to the end of the last Ice Age.

Credits: envato elements; Author: jason_storer;

Those collected so far include aspen and juniper, from surviving fragments of ancient woodland, on Skye, the Western Isles and Orkney, and the west coast temperate rainforest.