Bloom & Flowering Boosters

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      Phosphorus and potassium boosters, bloom formulas and flowering-stage fertilizers to support bud set, flowers and fruit.

      20 products
      Grow More Orchid Food Bloom Formula 6-30-30, 10 oz jar
      Grow More Orchid Food Bloom Formula 6-30-30, 1.25 lb jar
      Grow More Premium Orchid Food Bloom Formula
      6-30-30 - Water-Soluble Bloom Booster for Orchids  (10 oz–1.25 lb)
      Grow More
      $7.00–$10.00
      Nectar for the Gods Bloom Khaos 5 gallon
      Nectar for the Gods Bloom Khaos - Foliar Spray and Water-In Bloom Additive - 5 Gallon
      Nectar for the Gods
      $347.00
      Mad Farmer M.O.A.B. Mother of All Blooms 250 g
      Mad Farmer M.O.A.B. Mother of All Blooms
      0-52-32 - Bloom Booster Powder - 250 g
      Mad Farmer
      $14.95
      Rhizoflora Purpinator 1 Gallon
      Rhizoflora Purpinator
      0-2-4 - Flavonoid and Purple Coloration Additive for Flowering Plants - 1 Gallon
      Rhizoflora
      $95.72
      Microbe Life Hydroponics Terps Plus 32 oz bottle
      Microbe Life Hydroponics Terps Plus - Terpene-Supporting Fertilizer Enhancer - 32 oz
      Microbe Life Hydroponics
      $43.95
      Power Si Bloom 5 Liter jug
      Power Si Bloom
      1-2-0.5 - Premium Flowering and Maturation Additive with Bioavailable Silica - 5 Liter
      Power Si
      $227.95
      Cutting Edge Solutions Uncle John's Blend, 1 Gallon
      Cutting Edge Solutions Uncle John's Blend, 2.5 Gallon
      Cutting Edge Solutions Uncle John's Blend
      0-0-2 Potassium Additive  (1 gal–2.5 gal)
      Cutting Edge Solutions
      $80.95–$146.95
      Sold Out
      House & Garden Bud-XL Flowering Additive, 20 Liter
      House & Garden Bud-XL Flowering Additive - 20 Liter
      House & Garden
      $475.95
      Roots Organics Terp Tea Bloom 3-7-4 Dry Fertilizer, 9 lb Bag
      Roots Organics Terp Tea Bloom
      3-7-4 Dry Fertilizer - 9 lb
      Roots Organics
      $40.95
      GreenGro Nature's Pride Bloom 10 lb bag
      GreenGro Pride Lands Bloom (Nature's Pride Bloom) Dry Fertilizer
      2-5.5-5.5 - 10 lb
      GreenGro Biologicals
      $75.16
      Dyna-Gro Mag-Pro 5 gallon jug
      Dyna-Gro Mag-Pro
      2-15-4 Blossom Booster Nutritional Supplement - 5 Gallon
      Dyna-Gro
      $321.82
      Roots Organics Terp Tea Bloom 3 lb pouch
      Roots Organics Terp Tea Bloom
      3-7-4 Dry Natural Bloom Fertilizer - 3 lb
      Roots Organics
      $21.66
      Haifa MKP Mono Potassium Phosphate 0-52-34 55 lb bag
      Haifa MKP Mono Potassium Phosphate
      0-52-34 - Water-Soluble Phosphorus and Potassium Fertilizer - 55 lb (25 kg) Bag
      Haifa
      $85.00
      Grow More Soluble 6-30-30 fertilizer, 25 lb bag
      Grow More Soluble
      6-30-30 - 100% Water-Soluble Bloom Fertilizer Concentrate - 25 lb Bag
      Grow More
      $105.95
      Fox Farm Big Bloom Pint
      Fox Farm Big Bloom Gallon
      FoxFarm Big Bloom - Liquid Bloom Fertilizer with Worm Castings and Bat Guano - Pint, Gallon and 2.5 Gallon  (Pint–2.5 Gallon)
      FoxFarm
      $6.95–$96.95
      Fox Farm Tiger Bloom Quart
      Fox Farm Tiger Bloom Gallon
      FoxFarm Tiger Bloom
      2-8-4 - Liquid Bloom Fertilizer - Quart, Gallon, 2.5 Gallon and 5 Gallon  (Quart–5 Gallon)
      FoxFarm
      $13.95–$210.95
      Fox Farm Open Sesame 1lb
      Fox Farm Open Sesame 2lb
      FoxFarm Open Sesame
      5-45-19 - Early Bloom Soluble Fertilizer - 6 oz, 1 lb, 2 lb and 15 lb  (1lb–6oz)
      FoxFarm
      $19.94–$190.95
      Fox Farm Cha Ching - 1 lb
      Fox Farm Cha Ching - 2 lb
      FoxFarm Cha Ching
      9-50-10 - Late Bloom Soluble Fertilizer - 1 lb, 2 lb and 15 lb  (1 lb–15 lb)
      FoxFarm
      $31.95–$151.95
      Fox Farm Beastie Bloomz - 1 lb
      Fox Farm Beastie Bloomz - 2 lb
      FoxFarm Beastie Bloomz
      0-50-30 - Mid to Late Bloom Soluble Fertilizer - 1 lb, 2 lb and 15 lb  (1 lb–15 lb)
      FoxFarm
      $30.95–$192.95
      Alaska Morbloom 0-10-10 liquid bloom fertilizer, 1 gallon jug
      Alaska Morbloom
      0-10-10 - Liquid Bloom Fertilizer for Roses, Annuals and Flowering Plants - 1 Gallon
      Alaska
      $27.95