This disclosure features combinations that include a paraffinic oil and a Class B gibberellin biosynthesis inhibitor. The combinations can further include (but are not limited to) one or more of the following: one or more emulsifiers, one or more pigments, one or more silicone surfactants, one or more anti-settling agents, and water. This disclosure also features methods of using the combinations for promoting health of a plant (e.g., turf grass) as well as methods of formulating combinations that include both oil and water as oil-in-water (O/W) emulsions.