Plants are creatures that gain nourishment through photosynthesis and are vegetable in nature. The "plant" creature type includes only plants that are creatures (plants having wisdom and charisma scores); plants like ones growing in gardens and fields are classified as objects.
Behind the ScenesEdit
In the 3rd edition game mechanics, plants are considered one of the major creature types, which are Aberrations, Animals, Constructs, Dragons, Deathless, Elementals, Fey, Giants, Humanoids, Magical Beasts, Monstrous Humanoids, Oozes, Outsiders, Plants, Undead, and Vermin. Within the 3rd edition mechanics, all plants have 8-sided hit dice; low-light vision; an immunity to all mind-affecting spells and abilities, poison, sleep effects, paralysis, polymorphs, and stunning; are not subject to critical hits; and do not need to sleep, amongst other traits.