Maxi Series, comprised MaxiGro and MaxiBloom, is a duo of standalone, water-soluble formulas with primary, secondary and micronutrients. MaxiGro and MaxiBloom are highly concentrated and dissolve rapidly in water. Their dry form means they are portable and can be easily stored, which makes them a popular choice for outdoor gardeners. KoolBloom 2-45-28 is a dry concentrated plant food supplement formulated to promote intense and abundant flowering. It contains the nutrients needed to enhance the produciton of robust blooms as well as essential oils and fragrance in many flowers and culinary and medicinal herbs. KoolBloom is part of a blooming feeding regimen. We recommend starting with Liquid Koolbloom during the early stages of blooming following feed chart instructions. Switch to KoolBloom only during the last 1-2 weeks of flowering to promote ripening in plants.