All of the flowers, vegetables, stage 1 pumpkins, mushrooms, berries.
Flowers except for , i think : Honeysuckle kudzu since it got nerfed, possibly daisies? No lilypad bulbs either. The inspirational ones should work though.
Vegetables require their own skill, and I believe the exception is the jalapeno which needs to be a mutant bellpepper.
Shrooms need their own skill and I'm not sure but I think the new rare mushroom can no longer be potted on its own.
Berries need the bushes skill I think for blackberry and cranberry, while crowberry and huckleberry will just spawn multiples of the same berry rather than a bush.
Can plant thorn bushes and tea bushes as well. Can also plant a gourd for a chance to get either a bellpepper or a baby bear.
Edit: Also
http://www.thesalemwiki.com/wiki/index. ... le=Potable contains possible planted stuff with possible outcomes.