You can use Woodland Scenics tree armatures for effective and durable wargaming forest terrain trees. Use for a variety of scales.
Choose from multiple ways to create foliage - Clump Foliage, Fine Tree Foliage, Polyfibre and flock, and foliage. You can add flock to highlight your tree foliage and bring depth and realism to your tabletop. Check out the foliage guide on the blog here