Advanced Nutrients Bud Blood. What's more, BUD BLOOD BLOOM STIMULATOR™ contains bloom initiating kelp extracts. Advanced Nutrients Bud Blood 0-39-25 - 300 gram. Even better, unlike other bloom boosting formulas out there, all the ingredients in BUD BLOOD BLOOM STIMULATOR™ have been rigorously tested with the types of plants we grow and in the types of gardens we grow them in.