>>2707679>How long can trees grow in pots?As long as you want to, there are bonsai trees over 400 years old still growing strong.
>How big can I get saplings before they MUST be planted?There is no real upper limit but at some point the bigger they get the harder it'll be for them to adapt to new place and the higher chance they'll wither when planted.
>How far ahead can I start nursery-ing trees in advance so I can just unpot them all and put them in the ground when I arrive at my new property in the future?Really depends on species but 2-3 years should be fine even for large fast growing trees like mulberries before it gets too big for any practical pot.
Smaller trees and shrubs like gooseberries can spend a decade being replanted every few years no problem.
