--- product_id: 741390191 title: "Mammoth Organic Bloom Booster | Mammoth P Organic Fertilizer Microbial Inoculant | 16% Proven Increase in Yield (250 ml)" brand: "mammoth" price: "$101.34" currency: USD in_stock: true reviews_count: 11 category: "Mammoth" url: https://www.desertcart.us/products/741390191-mammoth-organic-bloom-booster-mammoth-p-organic-fertilizer-microbial-inoculant store_origin: US region: United States of America --- # 16% yield boost Works in soil & hydroponics OMRI-certified organic Mammoth Organic Bloom Booster | Mammoth P Organic Fertilizer Microbial Inoculant | 16% Proven Increase in Yield (250 ml) **Brand:** mammoth **Price:** $101.34 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your garden game with Mammoth — where organic meets unstoppable growth! ## Quick Answers - **What is this?** Mammoth Organic Bloom Booster | Mammoth P Organic Fertilizer Microbial Inoculant | 16% Proven Increase in Yield (250 ml) by mammoth - **How much does it cost?** $101.34 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/741390191-mammoth-organic-bloom-booster-mammoth-p-organic-fertilizer-microbial-inoculant) ## Best For - mammoth enthusiasts ## Why This Product - Trusted mammoth brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Microbial Magic Inside:** Beneficial bacteria and spent filtrate continuously fuel nutrient production. - • **Boost Your Bloom by 16%:** Scientifically proven to accelerate growth and maximize your harvest. - • **Certified Organic Power:** OMRI-certified formula ensures eco-friendly, chemical-free plant nutrition. - • **Universal Garden Compatibility:** Seamlessly integrates with soil, soilless, and hydroponic systems for versatile use. - • **Disease Defense for Your Plants:** Protects the rhizosphere to keep your garden thriving and resilient. ## Overview Mammoth Organic Bloom Booster is a 250 ml OMRI-certified liquid fertilizer and microbial inoculant that delivers a proven 16% increase in plant yield. Compatible with soil, soilless, and hydroponic systems, it enhances plant growth while protecting against diseases through beneficial bacteria and spent filtrate, making it a versatile and eco-friendly choice for professional and hobbyist gardeners alike. ## Description desertcart.com : Mammoth Organic Bloom Booster | Mammoth P Organic Fertilizer Microbial Inoculant | 16% Proven Increase in Yield (250 ml) : Patio, Lawn & Garden Review: Mammoth P kicks Ass - Works great from clones to flower great mulit use product orgamic. Review: It just works - Works great in my indoor hydroponic system would definitely buy again. A little goes a long way. ## Features - 16% Increased Yield - Speed up plants’ growth without adverse effects using our flower fertilizer. - Certified Organic - OMRI-certified inoculantーallowing plants to act as a natural bloom booster! - For Soil, Soilless & Hydroponic Systems - Plus, it’s compatible with all garden fertilizer programs! - Prevents Plant Diseases - Mammoth grow supplies protect plants’ rhizosphere for a healthier garden! - With Beneficial Bacteria & Spent Filtrate - Encourages the continuous production of plant nutrients! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01C69YRXS | | Best Sellers Rank | #31,492 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #915 in Garden Fertilizers | | Brand | Mammoth | | Brand Name | Mammoth | | Coverage | Full | | Customer Reviews | 4.7 out of 5 stars 1,004 Reviews | | Included Components | Bottle | | Item Form | Liquid | | Item Weight | 8.8 ounces | | Liquid Volume | 250 ml | | Manufacturer | Mammoth P | | Model Number | 250 ML | | Number of Items | 1 | | Part Number | MAMMP250ML | | Specific Uses For Product | Organic | | Target Species | plants | | UPC | 851015006026 | | Unit Count | 8.45 Fluid Ounces | ## Images ![Mammoth Organic Bloom Booster | Mammoth P Organic Fertilizer Microbial Inoculant | 16% Proven Increase in Yield (250 ml) - Image 1](https://m.media-amazon.com/images/I/61Y4KKprurL.jpg) ![Mammoth Organic Bloom Booster | Mammoth P Organic Fertilizer Microbial Inoculant | 16% Proven Increase in Yield (250 ml) - Image 2](https://m.media-amazon.com/images/I/71OzoiaLe+L.jpg) ![Mammoth Organic Bloom Booster | Mammoth P Organic Fertilizer Microbial Inoculant | 16% Proven Increase in Yield (250 ml) - Image 3](https://m.media-amazon.com/images/I/61Zx8Sb8KQL.jpg) ![Mammoth Organic Bloom Booster | Mammoth P Organic Fertilizer Microbial Inoculant | 16% Proven Increase in Yield (250 ml) - Image 4](https://m.media-amazon.com/images/I/61BBCMkafUL.jpg) ![Mammoth Organic Bloom Booster | Mammoth P Organic Fertilizer Microbial Inoculant | 16% Proven Increase in Yield (250 ml) - Image 5](https://m.media-amazon.com/images/I/81v6VHxuNxL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can these live microbes be used in a dwc aeroponics system without causing algae growth due to the air stones?** A: Do not buy this product. We did extensive testing on it and there was no evidence that our phosphorus levels increased. That being said if you use it in your aeroponic system it won't grow algae on its own. However if you have high phosphorus and your reservoir is exposed to light , algae will grow. The best way to fight algae no matter what you are using is to not allow any light to get into your reservoir. **Q: I use growers recharge . is this basically the same thing and if their not could this be used together with growers recharge?** A: not the saame. can use together **Q: What’s the volume size ? It doesn’t say** A: It is 1 ltr, excellent product **Q: Smells really bad, is it normal?** A: no that is not normal. I have smelt mine before using many times and it never smells really bad. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Mammoth P kicks Ass *by A***R on June 9, 2026* Works great from clones to flower great mulit use product orgamic. ### ⭐⭐⭐⭐⭐ It just works *by R***R on August 2, 2026* Works great in my indoor hydroponic system would definitely buy again. A little goes a long way. ### ⭐⭐⭐⭐⭐ THE GAME CHANGER. If you aren’t Growing with this, you’re not growing. *by T***L on February 27, 2024* Mammoth P is the most unbelievable product that has touched and blessed the market of cannabis and other plants alike. My plants love this it is like ambrosia to them. They particularly like this during the flower stage when the phosphorus is most needed. Agro with mostly microbial products, and I grow with all organic products. Mammoth P is the way to get those rock hard buds you have been looking for. Hard sturdy branches to hold them up. This is a way to liberate all of the nutrients that have been locked away in your soil, unable to feed your plants. I would not suggest using this and adding another fertilizer with extra phosphorus of any kind as this increases phosphorus so incredibly much. If you are using build a soil or something like that Or are you are a No till living soil grower Honestly, this is the product for you. This really lends itself more towards Soil growing not that hydroponic feeding tube style of growing. The real way to Grow plants has returned lol. ## Frequently Bought Together - Mammoth Mammoth P 1 Litre Organic Microbial Inoculant Fertilizer - VitaLink 06-251-100 250 ml CalMag - CANNA 1L CANNAzym Liquid --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/741390191-mammoth-organic-bloom-booster-mammoth-p-organic-fertilizer-microbial-inoculant](https://www.desertcart.us/products/741390191-mammoth-organic-bloom-booster-mammoth-p-organic-fertilizer-microbial-inoculant) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-19*