How can you encourage vigorous growth?
I have planted several trees - a few last fall, and a few this spring. Two of the trees I planted last fall were multi-trunks sweet bay magnolias, they were probably 5-6 feet tall (largest trunk was probably 1 - 1.5 inch caliper).
Both trees are doing fine. One sweet bay had one of its smaller trunks extend vertically at least 3 feet since planting. It grew fast... mostly over the winter and then some more this spring.
The other looks - oh about the same as when I planted it - doing fine, mind you - just hasn't really exploded like the other one.
So... I'd love to encourage similar growth in all my trees - that dramatic vertical extension.
Does anyone have any suggestions?