By Harrywilson
United Kingdom 
would it harm my apple trees if i were to raise the soil level above the base of the trees in creating a raised bed 18 inches high
12 Apr, 2011
Answers
Yes it certainly would! Don't do that.
12 Apr, 2011
Preferably, make the inner ring at least as wide as 1/3 of the tree's spread. Even so, it really won't be good for it--likely to lose some vigor and crop.
13 Apr, 2011
thank you for your answers most helpful
15 Apr, 2011
Make sure that your trees will not be sitting in water, with the soil area around them being so much higher!
15 Apr, 2011
Yes it would kill your apple trees Harry! You will need to create an inner ring to your raised bed that your apple trees grow out of.
12 Apr, 2011