Grotek Blossom Blaster, 2.5kgGrotek Blossom Blaster is designed to provide the nutrients necessary to support prolific flowering and bud filling for high quality yields. A concentrated formula that provides abundant nutrients for rapidly developing flowering sites. This formula uses high grade ingredients to support flowering plants. B Blossom Blaster contains high levels of phosphorous and potassium, which are two of the most important macronutrients required by plants.