Posted: 10/03/2013 at 18:05
Round here the ground is natrually boggy and wet so the farmers plant bog tsandard willows in pastures and along the boundaries of borderline arable fields. However willows are notorious for having roots which penetrate everything so are not a solution near to any building. Poplars also get planted for their water absorption powers but they tend to be short lived and even more unlovely than a plain willow.
As stated above, the only solution of your situation is remedial building works to tank out the basement. You could also look into injections to prevent water rising higher up into theground floor walls and check that all drains are functioning properly and not leaking.
We will be having injections done ourselves in the next month or so to arrest rising damp in a brick barn we plan to renovate. There is already a Roman drain and pump system in place along its north and east walls and that should do the trick so we can make it habitable.