General Hydroponics Liquid KoolBloom 0-10-10 - 32oz

Liquid Bulking Agent for Larger Fruit and Flower Formation, 32oz

Fruit and flower size is set early in the reproductive cycle, and a feeding program that waits until mid-bloom to address it is already behind. General Hydroponics Liquid KoolBloom 0-10-10 is a liquid bulking agent applied at the start of the reproductive cycle to support larger fruit and flower formation, layering directly onto an existing bloom-stage feeding program.

The 32oz size is a compact option for smaller gardens or growers who want to try Liquid KoolBloom before committing to a larger volume.

Key Features & Benefits

• 0-10-10 liquid formula — delivers phosphorus and potassium in a ready-to-mix liquid rather than a dry powder.
• Early-bloom timing — applied at the start of the reproductive cycle, when fruit and flower size is being established.
• Bulking-stage support — targets fruit and flower size formation rather than late-stage finishing.
• Reservoir-ready liquid — mixes directly into an existing nutrient solution at the labeled dilution rate.

Who Should Use Liquid KoolBloom

Growers whose plants are entering the reproductive stage and who want to support fruit and flower size from the start of bloom, rather than waiting until finishing, are the fit for Liquid KoolBloom. It is layered onto an existing base bloom program.

About General Hydroponics

General Hydroponics traces back to Lawrence Brooke's 1976 founding in Berkeley, California, and the company has continued developing bloom-stage and specialty nutrient formulas since Hawthorne Gardening Company, a Scotts Miracle-Gro subsidiary, acquired it in 2015.

Frequently Asked Questions

When should I start applying Liquid KoolBloom?

Apply it at the start of the reproductive cycle, as plants transition into flowering, rather than waiting for mid- or late-bloom. That timing is what allows it to support fruit and flower size as it is being established.

How is Liquid KoolBloom different from dry KoolBloom?

Liquid KoolBloom (0-10-10) is a bulking agent used early in the reproductive cycle to support fruit and flower size, while dry KoolBloom (2-45-28) is a concentrated finishing powder applied at the very end of flowering. They serve different points in the same flowering timeline.

Do I still need my base bloom nutrients?

Yes, Liquid KoolBloom is a 0-10-10 supplement, not a complete feeding program, so it is meant to layer onto an existing base bloom feed. Keep your regular nutrient schedule running alongside it.

How do I mix Liquid KoolBloom into my reservoir?

Add it directly to your existing nutrient solution at the label's dilution rate for your reservoir size. It is formulated as a ready-to-mix liquid rather than requiring pre-dissolving.

What size Liquid KoolBloom should I buy?

Sizes run from a 32oz bottle for smaller gardens up to a 55gal drum for large-scale commercial operations, with 1gal, 2.5gal, and 6gal in between. Match the size to how much nutrient solution you mix and how often you reorder.