The Thieves of Waterdeep
POTION OF PLANT CONTROL
A plant control potion enables the individual who consumes it to influence the behavior of vegetable life forms. This includes normal plants, fungi, and even molds and shambling mounds—within the parameters of their normal abilities. The imbiber can cause the vegetable forms to remain still or silent, move, entwine, etc., according to their limits.
Vegetable monsters with Intelligence of 5 or higher are entitled to a saving throw vs. spell. Plants within a 20-foot by 20-foot square can be controlled, subject to the limitations set forth above, for 5d4 rounds. Self-destructive control is not directly possible if the plants are intelligent (see charm plants spell). Control range is 90 yards.