Mad Farmer Mother Of All Blooms – 1 Kg

Mad Farmer M.O.A.B. (Mother of All Blooms) is a dry bloom booster with a 0-52-32 NPK formulated to deliver high concentrations of phosphorus and potassium during the flowering stage. The 1 kg bag is used at 1 ml per gallon of feed water and is intended for the final two to three weeks of bloom to optimize nutrient conditions and support plant mass development.

Mad Farmer M.O.A.B. Specifications

M.O.A.B. is a soluble dry powder concentrate. All values below are drawn from the canonical product data and manufacturer-published label information.

Specification	Value
Brand	Mad Farmer
Product Name	Mother of All Blooms (M.O.A.B.)
SKU	MFMOAB1000
Pack Size	1 kg (2.2 lb)
NPK Ratio	0-52-32
Phosphorus (P2O5)	52%
Potassium (K2O)	32%
Dose Rate	1–2 teaspoons per 5 gallons (1 ml per gallon)
Application Stage	First week of bloom and/or last 2–3 weeks of flowering
Product Form	Soluble dry powder
Weight (shipping)	2.403 lb
Key Ingredients	Mono Potassium Phosphate, Mono Ammonium Phosphate, Thiamine Hydrochloride (Vitamin B-1)

Why Choose Mad Farmer M.O.A.B.

M.O.A.B. is a purpose-built bloom additive, not a base nutrient. Its value is in what it does with a concentrated 0-52-32 analysis: it temporarily floods the root zone with phosphorus and potassium at the precise time plants need them most — late bloom. Here is what grounds the decision to reach for M.O.A.B. over a generic PK booster:

• Extreme PK concentration in a single product. The 52% available phosphorus and 32% potassium oxide analysis comes from combining Mono Potassium Phosphate and Mono Ammonium Phosphate — both well-established water-soluble fertilizer salts with high purity and predictable dissolution. Growers get a known, measurable dose rather than a blended amendment of unclear elemental content.
• Dry powder format is stable and concentrated. Unlike liquid PK boosters, a dry formulation does not degrade in storage, and the 1 kg bag covers a meaningful volume of feed water at the label rate of 1 ml per gallon. A grower mixing 100-gallon reservoirs gets a clear, weight-measurable dose each time.
• Vitamin B-1 (Thiamine Hydrochloride) included. The canonical description notes that Thiamine Hydrochloride helps plants resist transplant shock. Its inclusion in a bloom booster is practical — some growers transition plants between nutrient regimes late in flower, and having B-1 in the same dose reduces the number of separate additives to track.
• Flexible application window. M.O.A.B. can be added at the very start of the bloom cycle to help initiate flowering, then reintroduced during the final two to three weeks as a finisher. This flexibility means a single product serves two points in the crop schedule rather than requiring separate early-bloom and late-bloom SKUs.
• Compatible with base nutrient reduction. Because M.O.A.B. delivers high phosphorus and potassium, Mad Farmer’s own direction is to reduce base nutrients by up to 50% when running it. This means the product is designed to integrate into an existing feed program — growers do not need to rebuild their nutrient schedule from scratch to use it.

Best Uses for Mad Farmer M.O.A.B.

M.O.A.B. fits into a crop program at specific points in the flowering cycle. The following use cases are drawn from the product’s labeled directions and its category as a bloom booster in the Growth & Bloom Boosters subcategory under Nutrients & Additives.

• Late-bloom finish (weeks 5–8 of flowering). The primary application is during the last two to three weeks of the bloom cycle. At this stage, plants are no longer building vegetative structure and the crop benefits from elevated phosphorus and potassium to support seed and fruit development. Dissolve 1–2 teaspoons per 5 gallons (or 1 ml per gallon) in feed water alongside a reduced base nutrient dose.
• Bloom initiation (week 1 of flowering). The label also permits use in the first week of bloom to help initiate the flowering cycle. A single early dose at the transition point from vegetative to flowering can provide a phosphorus signal that supports the shift in plant metabolism.
• Hydroponic and deep-water culture reservoirs. Because M.O.A.B. is a water-soluble dry powder that dissolves cleanly, it is well suited to recirculating hydroponic systems where undissolved particles would clog emitters or block lines. Mix into reservoir water and verify EC after addition.
• Coco coir and soilless media. Plants grown in inert media with no buffered nutrient reserve benefit from precise elemental inputs. M.O.A.B.’s known NPK analysis makes it straightforward to model the additional P and K load going into a coco run.
• Supplement to existing nutrient programs. M.O.A.B. is an additive, not a standalone nutrient line. It works alongside any base nutrient program (two-part or three-part) that is reduced by up to 50% during its use. Growers already running a nutrient line can add M.O.A.B. as a finishing boost without switching brands or restructuring their feed chart. If you are also using a root-support product like Advanced Nutrients Tarantula earlier in the cycle, M.O.A.B. picks up where microbial root colonization products leave off — during the final phase when soluble PK uptake matters most.
• Large-format grows requiring cost-effective PK. The 1 kg dry powder yields a meaningful number of gallons at the label dose. Growers running multiple tents or commercial-scale systems will find the dry format more economical to ship and store than equivalent liquid volumes.

Mad Farmer M.O.A.B. vs Similar PK Bloom Boosters

M.O.A.B. competes with other high-PK soluble powders and liquid bloom supplements used in the final weeks of flower. The comparison below uses available product category data and the alternates listed for this SKU. No specific competitor product details are available from the canonical row, so this section addresses the general trade-offs rather than naming specific products with unverified specs.

Dry powder vs. liquid PK boosters. Liquid bloom supplements typically run 0-10-10 to 0-39-25 in their usable analysis after water weight is factored in. M.O.A.B.’s 0-52-32 dry analysis means that a smaller physical volume delivers more elemental P and K per gram. Liquid products are pre-mixed and easier to measure by volume, but they have higher per-dose costs when compared on a per-gram-of-active-element basis. Growers who need predictable elemental dosing and have the discipline to weigh powders accurately tend to prefer the dry format.

Single-source PK vs. multi-ingredient bloom supplements. Some late-bloom products add amino acids, humic acids, or plant extracts alongside PK. M.O.A.B. keeps the ingredient list short — Mono Potassium Phosphate, Mono Ammonium Phosphate, and Thiamine Hydrochloride — which makes it easier to troubleshoot if plants show sensitivity. Growers who already have a carbohydrate source or enzyme additive in their program (such as Earth Juice Hi-Brix Molasses) can layer those alongside M.O.A.B. without worrying about interaction between multiple proprietary blends.

M.O.A.B. vs. foliar PK sprays. Foliar application of phosphorus and potassium is less common in late bloom due to humidity management concerns and the risk of bud contamination. M.O.A.B. is a root-zone drench product applied through feed water, which avoids those issues entirely and is the standard approach for most indoor bloom programs.

Compatibility

M.O.A.B. is formulated as a water-soluble additive compatible with a range of growing systems and base nutrient programs. The following compatibility notes are based on the product’s labeled use directions and ingredient profile.

Growing media: M.O.A.B. is suitable for use in hydroponic systems (DWC, NFT, recirculating drip), coco coir, soilless mixes, and hand-watered pot applications. It dissolves in water and is applied through feed water at the root zone. It is not labeled as a foliar spray.

Base nutrient programs: M.O.A.B. is designed to supplement any existing two-part or three-part base nutrient program. Because it delivers significant additional phosphorus and potassium, Mad Farmer recommends reducing base nutrients by up to 50% when incorporating M.O.A.B. into the feed schedule. Failure to reduce base nutrients may result in overfeeding and plant burn.

Water sources: As a soluble powder, M.O.A.B. should be mixed into properly pH-adjusted water (target pH 5.8–6.5 for hydroponic applications, 6.0–7.0 for soil and coco). Add it to water rather than mixing it dry with other powders first. Always measure EC after mixing to confirm the reservoir is within the target range for the crop’s growth stage.

Other additives: M.O.A.B.’s short ingredient list (Mono Potassium Phosphate, Mono Ammonium Phosphate, Thiamine Hydrochloride) minimizes compatibility concerns with most third-party additives. Growers using enzyme products, beneficial microbe supplements, or carbohydrate additives alongside M.O.A.B. should add each component to the reservoir separately and test EC/pH after each addition before applying to plants. If you are running a root inoculant like Advanced Nutrients Tarantula earlier in the vegetative or early-bloom phase, M.O.A.B. picks up cleanly at the late-bloom phase without displacing those earlier inputs.

Overfeeding caution: M.O.A.B. delivers an extreme phosphorus and potassium load at even modest dose rates. Stay at or below the labeled rate of 1–2 teaspoons per 5 gallons (1 ml per gallon). Exceeding the label dose in combination with unreduced base nutrients is the most common cause of plant burn when using this product.

Dosing Guidelines

The following dosing information is taken directly from the manufacturer’s labeled directions as provided in the product’s canonical description. No values have been modified or extrapolated.

Standard dose: 1–2 teaspoons of M.O.A.B. per 5 gallons of feed water, equivalent to approximately 1 ml per gallon.

When to apply:

• First week of flowering: A dose at bloom initiation can support the start of the flowering cycle. Use the lower end of the range (1 teaspoon per 5 gallons / 1 ml per gallon) at this stage.
• Last 2–3 weeks of flowering: The primary labeled use. Apply at the standard dose (1–2 teaspoons per 5 gallons) for the final stretch of the bloom cycle to deliver added phosphorus and potassium as the crop finishes.

Base nutrient reduction: Mad Farmer’s direction is to reduce the amount of base nutrients by as much as 50% when M.O.A.B. is in the feed water. This is not optional — M.O.A.B. adds a substantial P and K load, and running it at full dose alongside a full base nutrient program risks pushing plants into overfeeding. Monitor plant response and adjust accordingly.

Overfeeding risk: The manufacturer explicitly notes that overfeeding may burn plants. Start at the lower label dose (1 teaspoon / 5 gallons) if uncertain, especially when using M.O.A.B. for the first time in a new crop or a new system. Check runoff EC to gauge uptake before increasing to 2 teaspoons per 5 gallons.

Mixing sequence: Dissolve M.O.A.B. in pH-adjusted water before adding to the reservoir. Do not mix dry with other concentrated powders. Stir until fully dissolved, then add remaining nutrient components, and verify EC and pH before feeding.

How to Use Mad Farmer M.O.A.B.

1. Determine application timing. Decide whether you are using M.O.A.B. at week 1 of bloom (bloom initiation) or during the final 2–3 weeks of flowering (bloom finish). Review your current base nutrient dose — you will need to reduce it by up to 50% when adding M.O.A.B.
2. Measure the dose. Weigh or measure 1–2 teaspoons (approximately 1 ml per gallon) of the dry M.O.A.B. powder for your reservoir or feed water volume. Use a calibrated measuring spoon or a gram scale for precision. Start at 1 teaspoon per 5 gallons on first use.
3. Pre-dissolve in water. Add the measured powder to a small amount of warm, pH-adjusted water (target pH 5.8–6.5 for hydro/coco) and stir until fully dissolved. Avoid mixing dry M.O.A.B. directly with concentrated nutrient solutions or other dry salts without dissolving first.
4. Add to reservoir or feed water. Pour the dissolved M.O.A.B. solution into your reservoir or feed container. Add any other nutrient components (at reduced base nutrient doses) and mix thoroughly.
5. Check EC and pH. Measure the final EC of the mixed solution. Verify pH is within your target range (5.8–6.5 for hydro/coco, 6.0–7.0 for soil). Adjust as needed before feeding plants.
6. Apply to plants and monitor. Water plants as normal with the M.O.A.B.-containing solution. Over the following 24–48 hours, observe plants for signs of nutrient stress (tip burn, leaf curl, discoloration). If burn symptoms appear, flush with plain pH-adjusted water and reduce the M.O.A.B. dose on the next feeding.
7. Repeat on the feeding schedule. M.O.A.B. can be used at every feeding during the designated application window (final 2–3 weeks of flower) or as a periodic boost. Follow the crop’s runoff EC readings to confirm nutrients are being taken up rather than accumulating in the root zone.

Sources & Further Reading