My silver maple is in full bloom, which means that before long I'll be inundated with "helicopters". Zonebreaker, I'll contact you via email when they're ready to ship. Based on experience here, all it takes is a wee bit of water and you should have near 100% germination. I always get thousands of volunteer seedlings in my beds every year. Speaking of which (and aside from the point of the thread) - I also perused the selection of trees available at Lowe's lately (needed some mole control) and am always somewhat flabbergasted to see 4-5 ft (1.2-1.5 m) silver maples for sale. If you grew one from seed, which is readily available on almost any street here in the spring, you'd easily have a tree that size by the second year, if not bigger!