???
You need to sell some houses
If something is physically attached to the property - including landscaping - it is considered part of the sale. That includes hose reels (if attached to the house), but not hoses. Light fixtures, but not light bulbs. Drapery hardware, but not drapes. Window blinds. Carpeting, but not carpets. Even spice racks in the kitchen if they are attached to a cabinet.
If you sell your house, and the day before close you start digging up the landscaping, you're asking for trouble. If the same happened to me, at the bare minimum at close I'd be asking you to pay to have all the landscaping replaced, professionally, else you might be headed for a lawsuit... and you'd lose unless you could specifically show written proof that you had carved out those bushes as a condition of sale.
Of course, most people are reasonable, and if what you remove is not of substantial value, they typically won't care. Just don't start digging out the 40 year old junipers to either side of the front door