Hi all.
I am an enthusiastic novice gardener. I planned and planted our very basic 70ft x 40ft back garden from nothing (literally a patio and fence to fence scrubby grass - previous owners had a dog & weren’t into gardens) to a now mature combination of small trees, shrubs, grasses, ground cover, roses and climbers. So I have some experience of choosing plants for specific areas and conditions and have experience of actually digging the holes and planting in them, as well as maintaining plants. Just to give you an idea of where I am ability-wise.
Anyway, I want to plant a hornbeam hedge in my garden (not on a boundary). The soil isn’t great, thanks to a pair of enormous protected cedars of Lebanon. However, afaik, hornbeam is pretty tough, so I’m hoping I’ll be ok if I enrich the existing soil when I plant them. Plus, i’m thinking i should probably put some moisture retention crystals at the roots too as the trees suck the moisture out the ground in that part of the garden.
The hedge would be about 9 metres/30ft long and ideally 1m/3+ ft wide. How deep/wide does the planting trench need to be? Can I reasonably do it myself with a spade or is that utter madness?!