Not only is Bougain formulated to dramatically increase blooms, it addresses the bougainvilleas Achilles heel - their thin and brittle root system. Ten years of research and testing led to perfecting this specialty plant food that dramatically increases blooms, strengthens roots, increases color vibrancy in both foliage and bracts, and produces an all-over healthy bougainvillea. BGI focused on the customer, listening to the issues and challenges of both the weekend gardener and professional landscaper, and met those concerns with this easy to use fertilizer that is unmatched in quality and functionality.