River Birch Pruning
I have a 2 year old river birch that's doing very well, almost too well, and I've been trying to discover the best time of year to prune the lower limbs so I can get under it with a mower. I've done a lot of reading online and found some wildly contradictory advice on the best time to do this. It seems the consensus on GardenWeb that summer is the best time, with possibly early fall also being possible. My concern is that, being located in S. Georgia and the tree being in full sun for much of the day, if I cut the lower limbs and therefore remove the shade they provide to the roots will it affect the tree?