'forest growth'

Druids can use this power to call forth a small grove of trees and thick plant life into a room that is not inside, in a city, or on the water. While the spell is short- lived, it will last long enough for the druid to hide in treeform, gather herbs, forage for berries, call a treant, etc. After a short time, the plant life will rapidly plunge back into the earth. It is such a strain on the druid that it can only be cast once every few hours.