Vital Earths O.G Bloom Mix 0-9-0 2kg Derived from Seabird and Bat Guanos For simply amazing blooms, whether tulips or tomatoes, nothing beats Vital Earth's O.G. Bloom Mix. If you're looking for the biggest, healthiest blooming in your garden, this fertilizer is a must have. A superior blend of bat and seabird guanos, specially formulated with no fillers for maximum results. An all-natural organic fertilizer that promotes intensive growth and flowering, as well as improve crop yields Soil deficient in organic matter may be made more productive by the use of Vital Earth's O.G. Bloom Mix.