"len gardener" wrote in message
news
g'day trish,

i can't imagine any issues, spread it over as wide an area as you can.
i have hidden rubble broken roof tiles etc.,. under raised garden
beds, with no apparent negative results. any break down would be very
slow also. with mortar there could also be salt in it as the brickies
loam is generally unwashed and contains salt but again i can't see
this being as issue either.




I think Len is right. Any leaching will be very slow to get into the soil
above.

David