To accelerate the growth of (plants, etc.).

To lead forward or on, conduct (Obsolete); to cause to advance, advance the growth of.

To hasten by artificial means the maturity of (plants, fruit, etc.). Also absol. and intransitive for reflexive.

To check the growth of (an animal, plant); to arrest (growth); to force (a plant) into bloom by restricting its supply of nourishment. Cf. stunt, v.1

transitive. To cause to travel rapidly; figurative to accelerate the progress or growth of.