I am putting a raised flower bed along an existing dry stone wall in my front garden. It will be made from 4 courses of 75mm high dressed walling (sand) stone. It will be 4.5 m long with a 0.5m return on either end.
Top view looks like:
================================================================= Top of Existing Drystone =================================================================
# Flower Bed Here # # ######################################################### # # #
Does anyone have any info on what depth of footing would be suitable for this wall? Ground is very solid and full of rocks (live near a disused quarry road). Most of existing soil will be re-used to fill bed.
Any other tips (drainage etc) would be appreciated too...
Thanks in adv,
Alex.