Nullis
Moderator
Granted, chances of survival are greater the older\stronger the plant is, but I would recommend starting and keeping them indoors for a bit longer before introducing to the outdoors (hardening) and then planting in the ground when they aren't so tender. Aside from that, choose a good location and consider what could go wrong in that spot before settling on it; check the forecast for as far out as you can. Just try to think about the lay of the land and the likelihood of potential pitfalls. E.g. avoid planting in swampy areas or places water can collect, esp. if severe rain is expected or common where you live.
With that, if you can find a good spot you really should be able to leave them alone for the greater part of their lives.
With that, if you can find a good spot you really should be able to leave them alone for the greater part of their lives.