Front Row Ag Bloom 25 LB

What It Is

Front Row Ag Bloom is the third component of the Front Row Ag A/B/Bloom dry soluble fertilizer system — a complete, three-part program engineered specifically for high-performance controlled environment cultivation. Bloom is formulated as a concentrated PK booster with an NPK of 0-35-29, delivering 35% available phosphate (P₂O₅) and 29% soluble potash (K₂O) alongside 1.5% magnesium and 4.0% sulfur.

The formula is derived from monopotassium phosphate, potassium sulfate, and magnesium sulfate — high-purity agricultural-grade inputs selected for maximum solubility and a low salt index. There is no nitrogen in Bloom, by design: as plants move through the flowering cycle, Bloom works alongside Part A and Part B to allow strategic nitrogen tapering, shifting plant resources toward secondary metabolism — terpenes, cannabinoids, and aromatic compounds.

The 25 lb bag is the commercial-scale format, sized for facilities running stock-tank injection systems or large direct-to-reservoir programs where smaller bags create unnecessary labor and reordering frequency.

Who It's For

Bloom is built for licensed cannabis and hemp cultivation operations running controlled-environment flower rooms — whether that's a single lease room or a multi-facility MSO footprint. It is used in hydroponic systems (NFT, DWC, recirculating drip), substrate-based coco and rockwool programs, and can be applied in soil or peat-based media.

Operators who are already running Part A and Part B will need Bloom to complete the system — Front Row Ag's program is designed so all three components work together. Facilities that have moved away from multi-product stacks of individual calcium-mag, PK boosters, and base nutrients will find the three-part system consolidates SKU complexity without sacrificing precision.

The 25 lb format is appropriate for any commercial operation going through product at scale. It is also the format used in Front Row Ag's 3-2-2 Commercial Bundle, which batches Part A, Part B, and Bloom in the recommended stock-solution ratio.

Key Features & Formulation Logic

Bloom's elevated phosphorus load supports the surge in energy demand that characterizes early-to-mid flower, while the potassium level drives cell expansion and water regulation through late flower and final swell. Magnesium sulfate is the primary Mg and S source — high sulfur content is intentional, as sulfur is closely linked to aromatic compound biosynthesis and terpene density.

Monopotassium phosphate contributes additional phosphorus and potassium at a low salt index, which matters in high-frequency fertigation programs where salt accumulation in substrate is a real operational risk. The formulation preserves solubility even in cooler stock-tank environments, which is a common failure point with cheaper PK products that crash out in solution.

Front Row Ag also offers a Hard Water variant of Bloom (Bloom HW) with modified magnesium levels for facilities running high-alkalinity source water. If your baseline Ca or Mg is already elevated from the water supply, consult the Front Row Ag feed charts for the appropriate variant before ordering.

How It Fits a Commercial Program

Bloom is used throughout the entire flowering cycle alongside Part A and Part B — not just in late flower. Front Row Ag's feeding methodology creates stock solutions in a 3:2:2 ratio of Part A, Part B, and Bloom, which are then injected at equal rates from first day of flip through final feed. This approach simplifies dosatron or injector programming and makes EC management consistent across rooms.

For direct-to-reservoir programs, Bloom mixes cleanly into solution. The product includes a red dye that helps confirm full dilution and proper mixing order when preparing working-strength solution — a useful quality check at scale when multiple technicians are running fertigation.

At roughly 170 gallons of 2.0 EC solution per pound of product (in flower, per part), the 25 lb bag carries meaningful volume for a production facility. Pair with Part A (14-0-8) and Part B (2-13-17) through HSC for a complete Front Row Ag three-part program sourced through a single account.