
Hiya, yes it is me LOL
Yes not a problem :) :)
They do get large, if you lay a tree down then thats the length of the roots. And even if you prune it the roots will still grow to the length as if not pruned, but as they do take a while to grow then you wont have to worry about it for 10 years or so :)
You would need to prune it regularily to keep it small, say twice a year, but the beauty is you can prune it at any time through the year unlike cherrys etc :)
The only problem you may have is getting it out, as they have a long tap root which is a pain to dig out :(
If you cant get it out, look out for seedlings (I have them growing all over my garden as have an Ash tree in my garden and a load in the wood at the bottom,) and pull then up and plant in a pit to grow on (two long bright green leaves)
If you cant get it out and need to chop it off, put a load of salt on the stump to kill it :) :)
Just make sure you keep the trees well watered and they will fruit :) :)
HTH
LEa :)