Twenty 12 -16 inch tall Quaking Aspen (Populus tremuloides) Seedlings: You are buying 20 trees. Photo showing 5 trees is to show size only. A fast growing deciduous shade and ornamental tree, quaking aspens can grow 4-10 feet a year. Reaches up to 40 feet tall and 15 to 20 foot wide at maturity. Grows in USDA zones 1-7. Prefers full sun or partial sun and has a wide range of preferred soil conditions ranging from acidic, loamy, moist, sandy, well-drained and clay soils. Our seed comes from Northern Idaho and our trees can withstand summer rains without rust problems. Grown in deep plug trays, ships rooted in soil, we can ship to all states. Shipped dormant without leaves in Fall and Winter and with leaves in Spring and Summer. Scenic Hill Farm is a licensed Oregon Nursery. Check out our store.