What is a Sub-alpine tree?

Sub-alpine trees are species that typically grow in the sub-alpine zone, which is situated just below the alpine zone in mountainous regions. This area is characterized by cooler temperatures, shorter growing seasons, and higher elevations, where trees must adapt to harsh conditions. Common sub-alpine tree species include conifers like spruce and fir, which are well-suited to withstand cold temperatures and strong winds. These trees play a crucial role in the ecosystem, providing habitat and stabilizing soil in mountainous areas.