In some cases raised beds for planting flowers, trees, veggies, shrubs there is not always a choice.
In my garden nothing was here but pasture and hard pan clay soil like concrete. After a few years of trying to amend the clay which just ended up a waist of time the clay was back by next season.
Raised beds was a great answer in this case . All the young seedlings and starts from trees and shrubs have all grown well. I put dump truck loads of mushroom compost across several areas of built up beds of 6-8" . With the compost addition it is applicable to assume the added compost will shrink up to 3".
Just the combo planting pictures in my data base shows how well it worked out. I started from scratch and knew nothing about gardening. Before raise beds I was loosing to many new plantings as clay even amended is tricky to tame.
Now if I could harness that energy again I would do it all again… just to add more new plants to my collections. But… second thought …..