Definitely some valid points – I had to put a lot of thought into this layout/material selection before doing it. Here’s my rationale:
The long side of the bed on the low side is South (the back of my house faces South). Yes it is tight with the sun, but I watched it last season and then again this season – it stays full sun until we get to late summer/early fall when the sun starts to go lower on the horizon (after these bear fruit in future years). The elevation of the bed actually helps with this by raising the canopy.
The south face of the bed is 18" off the property line, so with 40" bed width, my centers are about 38" off the line. All of the plantings are reported to be between 6’ to 8’ mature, so I am pushing the line but should be ok – or at worst, pruneable. It helps that it’s a slight ravine/waterway on the property line that isn’t really plantable, so the neighbor can’t do anything super near to the line.
It’s a bit of a roll of the dice on neighbors planting shade trees, but my current backyard neighbor just wants to look at my plantings and likes that I’ve created a screen between our houses. His yard has a significant slope up and he only has about 16’ deep of backyard so I don’t think he’ll do any additional trees/he can’t fit anything too big anyway… Hopefully mine will be enough.
The houses are new – actually why I ended up doing all my plantings in beds – I started on the front yard (North), installing 2019 and planting 2020 spring, and did this installation new 2020 summer and partial planted this fall. The existing soil conditions are really bad – mostly clay/no drainage. So started with beds with nice soil and drainage, plus don’t have to worry about buried utilities. I’m doing it in phases, probably will do some stuff in ground later on for elevation change, but starting with foundation plantings.
The stuff I choose is mostly for its hardiness, maintenance, no spray and disease/pest resistance and nutritional value. My end use is mostly making kombucha and kefir. I will probably dedicate a bed to blueberries at some point, just haven’t wanted to mess with special soil prep.
This particular bed should mostly fill solid (that’s the idea anyway) so I’m thinking a 40 foot x 6-8’ tall solid hedgerow of flowing bushes followed by berries will look pretty cool and offer good production. And it’s not so tall that I can’t layer in persimmon, jujube, etc. Behind it / have a dedicated veggie/garlic patch.
The yards are very small, so I push it a little… It’s a work in progress…