You can't.
by seedlings
no they dont you have to do it the same way as before
No, (unharvested) trees do not wither in FarmVille
To get animals on Farmville, you either buy them from the market with your Farmville dollars (which are received by leveling up or buy purchasing them) or with your Farmville coins (which are received by harvesting crops, trees, or animals, or by helping friends or won in the daily raffle). You can also get rare Farmville animals by adopting them when they wonder on to a neighbors farm.
You can't rotate trees on Farmville. You can only move them to a different spot on the farm.
Guava trees are gifts from the official website of Zynga (see related link). You can have it if your neighbors send you one. You can also buy one for 5 farmcash in the market
pineapple
luckly no lol :)
You cannot hide trees, unless you hide them behind bigger objects.
i have no idea
Nothing .. You can harvest trees whenever you want =D They will not die ...
You buy cheap trees like cherry trees and you can also recieve trees if someone sends you a gift of one.