
I am trying to prepare a piece of ground that has had a mature & overgrown hedge removed. There are hedge roots left that go down into the subsoil. Do I need to dig into the stoney subsoil to remove the roots??
I have read that the sub-soil should not be inverted/mixed with the top soil but I have no idea how to get the roots out without doing that. ?
I want to plant my Raspberry Canes

Will it all be ok if I just leave the sub soil as it is, chop the roots off above the sub soil, add my well rotted horse manure & worm-cast, & plant the raspberry canes?
Any advice would be very appreciated.
Thanks.