I heard a presentation Sunday by Mark Zilis in
which he spoke of the difficulty some have with GE. He says the key is in
confining the roots in the first 2-3 years, by planting the plant in the ground
within a pot so that the water and nutrients are kept right with the root
mass. You can read about this in his book.
My experience has been that when I bought a large,
well-grown plant to start with ( it was in a 2-gallon pot), it did very well for
me. I guess that would be virtually the same thing.