FoxFarm Big Bloom Liquid Concentrate 1 Gallon - Boosts Flower Size

In this review of FoxFarm Big Bloom liquid concentrate, the bottom line is simple: gardeners who want a natural, low-risk bloom booster will find a lot to like. This product is a 100% natural and organic, biologically alive formula designed to encourage extra large, multiple blooms without burning plants, so it suits growers who prioritize flavor and fragrance in fruits and vegetables and who need a gentle feed for sick or recently transplanted plants. The reviewer found it dependable across soil, hydroponic and foliar applications and appreciates that it can be used through the whole growth cycle and combined with complementary fertilizers.

Key Features

• 100% natural and organic: The live biological formula feeds plants and soil microbes, helping improve flavor and fragrance of produce.
• Low burn risk: With virtually no nitrogen and very low P and K, it is gentle enough for sick plants and transplants without causing fertilizer burn.
• Versatile application: Suitable for hydroponics, soil, foliar sprays and drip irrigation systems to fit different growing setups.
• Compatible with other feeds: Can be used alongside Tiger Bloom or other fertilizers to build a more complete nutrient program.
• Full growth cycle use: Intended for use from early growth through bloom to maintain consistent biotic support and encourage multiple blooms.

Who It's For

FoxFarm Big Bloom is aimed at home gardeners and small-scale growers seeking a natural bloom enhancer that improves the taste and scent of fruits and vegetables while promoting larger, multiple blooms. It is particularly good for users who need a gentle, biologically active feed for delicate transplants or recovering plants.

Growers who require a high-nitrogen feed or detailed macronutrient control should look elsewhere or pair Big Bloom with a targeted fertilizer, since this concentrate contains 0% nitrogen and only trace phosphorus and potassium levels by design.

Pros & Cons

Pros

• Organic, biologically alive formula that supports soil life and plant flavor.
• Safe for transplants and sick plants due to very low burn potential.
• Works across systems: soil, hydroponics, foliar and drip irrigation.

Cons

• Not a complete nutrient solution-contains 0% nitrogen and very low P and K, so it must be part of a broader feeding plan for full nutrition.

Specifications

Brand	FoxFarm
Product	Big Bloom Liquid Concentrate
Net volume	1 gallon
N-P-K	0-0.5-0.7
Weight	9.4 lb
Dimensions	7 in L x 4-1/2 in W x 11-1/3 in H
Use cases	Soil, hydroponics, foliar, drip irrigation

Our Verdict

FoxFarm Big Bloom is a solid choice for gardeners who want an organic, biologically active bloom enhancer that improves flavor and encourages larger flowers without risk of burning. It represents good value when used as part of a feeding program or paired with a nitrogen source, and it excels for transplants and plants in recovery.

Frequently Asked Questions

Can I use Big Bloom throughout the plant lifecycle?
Yes. The manufacturer recommends using it through the whole growth cycle for best results.

Is this product safe for foliar application?
Yes. It is formulated for foliar use as well as soil, hydroponic and drip systems.

Will this replace my regular fertilizer?
No. Big Bloom is a bloom enhancer with 0% nitrogen and low P and K, so it is best used alongside a balanced fertilizer program.