Cellular regeneration: Groot has been seemingly killed on three occasions, each time regrowing from a sprig. This may be a major contributor to his botanopathy.

Growth: Groot can grow at an extremely advanced speed at will, growing to his normal size from a sprig, or growing from his normal size to a giant form.

Plasticity: Groot has the ability to stretch his limbs for long distances and reshape them for a variety of tasks. He normally takes the shape of a large tree-like humanoid, but can also weave his limbs into a dense tangle of vines.He can grow individual limbs to currently undisclosed lengths, allowing him to have stretching powers, similar to Reed Richards'. This may be related to his cellular regeneration and his control over plants.

Strength: Groot's tree like form provides him great strength.

Durability: Groot's hide is composed of wood dense enough and durable enough to make him immune to most conventional weapons, including gunfire and fire which would consume most woods.

Control over other plants: Groot especially has the power to control other plants, or his own physical form, therefore he can turn his hands into blades, or grow in size altogether, or even use that power to heal himself from fatal wounds.