If you attach trellis of any kind, it would need to be on the outer edge of the wall, otherwise any aspiring interlopers will just stand on the edge of the wall and step over it. It's a common problem when people see a convenient short cut, unfortunately. Berberis and pyracantha will certainly put their gas at a peep. They don't like it up 'em
Even if you don't have a great deal of depth on the inside for planting, if you prep the ground well, and keep the shrubs well watered, they should establish without too much trouble.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
Great expression "gas at a peep" @Fairygirl , never heard it before. I must admit the trellis l was thinking of was more the cheap and cheerful kind , the sort that would just collapse at the merest suggestion of weight on it. You're right about the pyracantha, people used to cut across the corner of our front garden. A pyracantha on the corner soon put paid to that
As well as plants you might also consider anti climb paint which gets all over anyone who touches it or nailing prickle strips along the top of the fence. Originally designed to deter birds and cats there are some quite viscous human deterrent versions!
I'd love to decorate the wall with plants regardless of the anti-intrusion aspect. Therefore, I'm thinking of removing the shale between the edge of the patio, and the brick wall, digging a trench, filling it with soil and compost and planting a few thorny climbers, so they can grow up the wall.
My ambition would be for the climbers to reach the top of the wall and then 'droop' over the top to remove the ledge aspect of the top of the wall.
If at all possible, l would recommend removing at least one "run" of paving stones as well. This will give the plants a better chance than just the shale area
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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
It's a common problem when people see a convenient short cut, unfortunately. Berberis and pyracantha will certainly put their gas at a peep. They don't like it up 'em
Even if you don't have a great deal of depth on the inside for planting, if you prep the ground well, and keep the shrubs well watered, they should establish without too much trouble.
I live in west central Scotland - not where that photo is...
Attached is a photo of the inside of my wall.
I'd love to decorate the wall with plants regardless of the anti-intrusion aspect. Therefore, I'm thinking of removing the shale between the edge of the patio, and the brick wall, digging a trench, filling it with soil and compost and planting a few thorny climbers, so they can grow up the wall.
My ambition would be for the climbers to reach the top of the wall and then 'droop' over the top to remove the ledge aspect of the top of the wall.