I have a concrete patio that I would like to get rid of. I'd like to have either flagstone or large pavers with a grounnd cover growing in between. Question - if we remove the concrete can we just install the flagstone/pavers since the soil shoud already be compacted, etc.? Or, do we have to do through the process I've read here of using the sand filler, etc. Any pointers would be appreciated. Also, this may sound silly - but is it also possible to break up the concrete so that I have the space and just install the ground covers in the cracks (I know this sounds lazy - but thought I'd ask!).