Datura can be deadly and gives a very long powerful trip. It has its uses by Shamans, but you really have to know what you're doing. I personally wouldn't go there.
It used to grow in the gardens of Oldway Mansion in Paignton and local wreckheads were taking it, until one of them jumped off the local car park and the council subsequently cut down all their datura plants.
The trip reports on Erowid for datura are pretty horrendous,
http://www.erowid...tura/datura.shtml but there are worse.
Strange how one could legally sell this stuff (not that I ever would) yet the Government felt that a Magic Mushroom should be made the same class drug as crystal meth, heroin or crack cocaine.