FloraPro™ Bloom

FloraPro™ Bloom is part of General Hydroponics’ commercial, 2-part water-soluble base fertilizer system for continuous liquid-feed programs. Paired with FloraPro™ Calcium + Micros, Bloom supplies a precise, bloom-stage ratio of essentials so plants can develop large fruits and flowers with consistency.

Guaranteed Analysis (GA): 7-12-27 N-P-K, 5% Magnesium, 6.5% Sulfur.
Derived from: Ammonium nitrate, magnesium nitrate, magnesium sulfate, monopotassium phosphate, potassium nitrate.

: Stage-specific nutrition: Targeted P, K, Mg, and S levels to support reproductive growth.
Commercial simplicity: Three-product system; two in use at once—ideal for dual-tank/injection setups.
Consistency at scale: High-quality, technical-grade inputs; highly soluble for fast dissolving and no clogging.
Cost-efficient: 25 lb bags sized for commercial stock tanks; one bag makes thousands of gallons of working solution.

: FloraPro Bloom is the bloom-stage “B tank” in the FloraPro program. Paired with FloraPro Calcium + Micros, it supplies the NPK and secondary nutrients plants require during the flowering and fruiting cycle so they can put energy into large fruits and flowers instead of vegetative growth.

Two-part program: Run Calcium + Micros (all stages) + Bloom (flowering stage). Only two products are used at a time.
Dilution: Water-soluble; dissolve completely in water before feeding. Intended for continuous liquid feed via day tanks, fertilizer injectors, or dosing systems.
Stage application: Switch from Grow to Bloom as plants initiate flower; continue pairing with Calcium + Micros through bloom.
System fit: Works across media (rockwool, coco, soilless, etc.), but designed for commercial hydroponic growing.

Frequently Asked Questions

What is the maximum solubility limit of FloraPro™ Bloom, and what is the standard stock-tank mixing procedure?

The maximum recommended solubility is 420 g/L, or 3.5 lb per US gallon. For operational stability, do not exceed approximately 80% of that maximum when preparing concentrated stock.

Fill a clean tank to about 70% of final volume with fresh water, begin mechanical agitation, slowly add the weighed powder, dissolve completely, top off to final volume, cover the tank, and use the stock within 2 weeks. A common commercial concentration is 1 lb of fertilizer per gallon of stock.

How is FloraPro™ Bloom different from FloraPro™ Late Bloom?

FloraPro™ Bloom is the standard B-tank fertilizer used through the main flowering period. FloraPro™ Late Bloom is an optional nitrogen-free 0-24-26 finisher used during the final 1 to 2 weeks to support a controlled nitrogen fade while continuing phosphorus, potassium, magnesium, and sulfur delivery.

How does the FloraPro™ two-part A/B system function during the flowering phase?

Calcium + Micros (14-0-0) remains the constant Tank A component throughout the crop cycle. During flowering, it is paired with FloraPro™ Bloom (7-12-27) in Tank B to create a complete, concentrated flowering program.

How should unused FloraPro™ Bloom be stored, and what are its shelf life and warranty terms?

Store the hygroscopic powder tightly sealed and airtight in a cool, dry place away from sunlight and humidity. Unopened product has an expected shelf life of approximately 2 years and is best used within one season after opening. It carries a 1-year manufacturer warranty for conformity to label specifications.

Can concentrated FloraPro™ Bloom and Calcium + Micros be mixed in the same stock tank?

No. Keep Calcium + Micros in Tank A and Bloom in Tank B. Combining concentrated powders or stock solutions can cause immediate precipitation and mineral lockout. The two parts should meet only after injection into a highly diluted day tank or irrigation stream.

Can FloraPro™ Bloom be used as a standalone fertilizer?

No. FloraPro™ Bloom is not complete by itself and must be paired with FloraPro™ Calcium + Micros in the diluted working solution. Using Bloom alone would leave the crop without sufficient calcium and essential chelated micronutrients.

How does the elemental balance of FloraPro™ Bloom support reproductive crop outcomes?

When paired with Calcium + Micros, FloraPro™ Bloom supplies stage-specific phosphorus, potassium, magnesium, and sulfur. This mineral balance supports flower formation, fruit development, and generative weight during the main bloom window.

When should a commercial grower transition from FloraPro™ Grow to FloraPro™ Bloom?

Switch the B-tank source from Grow to Bloom at flower initiation, when the crop transitions from vegetative development to flowering or fruiting. This changes nutrient delivery from structural growth toward reproductive development.

What technical-grade raw materials are used to derive FloraPro™ Bloom, and does the formula contain added dyes?

FloraPro™ Bloom is derived from ammonium nitrate, magnesium nitrate, magnesium sulfate, monopotassium phosphate, and potassium nitrate. It contains no fillers or added dyes and is formulated to dissolve cleanly in commercial drip-irrigation and fertigation systems.

What is FloraPro™ Bloom and what is its specific guaranteed analysis?

FloraPro™ Bloom is a high-purity, technical-grade water-soluble dry fertilizer used as the flowering-stage B component of the commercial FloraPro™ program. Its guaranteed analysis is 7-12-27 N-P-K, with 5% magnesium and 6.5% sulfur to support intensive flower and fruit development.

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