I have a large white oak tree over my back deck that drops thousand of acorns ever other year.Interestingly they seem to sprout as soon as they hit the ground producing a tap root that anchors it to the soil before the winter sets in.I guess it's a defence against being collected and eaten by animals.I've even dug them out of the geraniums pots,where they sprouted after dropping into them,with six inches of root growth before the first freeze.No leaves just a tap root penetrating the soil and a small upward woody shoot.They leafed out the next spring.If you're looking to grow white oaks I would suggest collecting acorns from beneath a healthy local wild specimin that you like and plant them soon after they drop.Locally collected seed will more be acclimated to your area.An oak tree grown from seed in place will always out grow a transplanted one eventually.They don't like having that tap root disturbed.Just plant a hundred acorns and thin out the best trees in five years .I would stay from the vars.Sounds like a marketing gimick.
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