Treated plant seeds are provided, which have one or more modifying ingredients associated therewith. Such modifying ingredients can include compositions comprising water, flavorants, pH adjusters, buffering agents, humectants, antioxidants, oral care ingredients, preservatives, additives derived from herbal or botanical sources, and mixtures thereof that can be provided or diluted form. The treated plant seeds can be incorporated within tobacco products, including smoking articles, to alter the properties thereof (e.g., by releasing the one or more modifying ingredients into the mainstream smoke of a smoking article).