Find someone who owns Pokemon Black and use the Entralink to enter their Black City. Talk to people in there as they may want to move to your forest (which in turn makes grass and trees appear in the forest)
gi in the grass
You have to see grass and then go in the grass and battle. It is usually Elekid for me but try to get a Pokemon in White Forest. If there is no grass then you can't catch Elekid and other Pokemon so just try to get grass. :)
when you connect to other people's games through the highlink (entralink) you will unlock grass in white forest. The grass will hold Pokemon that are otherwise uncatchable in Unova.
you can find it in the pinwheel forest rustling grass
You can catch them in the pinwheel forest in the rustling grass.
pinwheel forest level 24 23 thick grass 15%
You have to interact with a friend's copy of Black or White via Entralink. Then you have to go to their Black City or White Forest and talk to the trainers in their City/Forest.
Panpour can be found rarely in shaking grass in the pinwheel forest
White forest is only in pokemon white.
Nowhere. you can find the Black city in pokemon black and White forest in pokemon white. YOu can't got to the white forest in pokemon black
ilex forest isn't in pokemon white
he/her is in white forest at level 5 but you have to find all the seven sages then once you have done that so of the grass in white forest will become water. Surf on the water and you will find him soon.