--- product_id: 530243907 title: "Uncle John's Famous: MycoDirt - Bulk Substrate Blend - for Growing Mushrooms - Coco Coir, Vermiculite, and Gypsum - Yields 10+ Pounds of Pasteurized Substrate - CVG Mix" brand: "uncle john's" price: "€ 39.24" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.hr/products/530243907-uncle-johns-famous-mycodirt-bulk-substrate-blend-for-growing-mushrooms store_origin: HR region: Croatia --- # 10+ lbs yield Optimal moisture retention Expertly crafted blend Uncle John's Famous: MycoDirt - Bulk Substrate Blend - for Growing Mushrooms - Coco Coir, Vermiculite, and Gypsum - Yields 10+ Pounds of Pasteurized Substrate - CVG Mix **Brand:** uncle john's **Price:** € 39.24 **Availability:** βœ… In Stock ## Summary > 🌟 Grow Your Own Fungi Adventure! ## Quick Answers - **What is this?** Uncle John's Famous: MycoDirt - Bulk Substrate Blend - for Growing Mushrooms - Coco Coir, Vermiculite, and Gypsum - Yields 10+ Pounds of Pasteurized Substrate - CVG Mix by uncle john's - **How much does it cost?** € 39.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/530243907-uncle-johns-famous-mycodirt-bulk-substrate-blend-for-growing-mushrooms) ## Best For - uncle john's enthusiasts ## Why This Product - Trusted uncle john's brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Mineral-Enriched:** Fortified with essential minerals for robust mycelium development. - β€’ **Moisture Mastery:** Superior water retention and drainage for optimal growth conditions. - β€’ **Hygienic Alternative:** Cleaner than traditional manure blends for a healthier harvest. - β€’ **Nutrient-Rich Formula:** Crafted with coconut coir, vermiculite, and gypsum for thriving mushrooms. - β€’ **Effortless Cultivation:** Premixed for your convenienceβ€”just pasteurize and grow! ## Overview Uncle John's Famous MycoDirt is a premium bulk substrate blend designed for growing mushrooms. This ready-to-use mix combines coconut coir, vermiculite, and gypsum to provide an optimal nutrient balance, superior moisture retention, and essential minerals for robust mycelium growth, yielding over 10 pounds of pasteurized substrate. ## Description Uncle John's Famous MycoDirt Mushroom Substrate is the MAGIC solution for at-home growing of your favorite mushrooms. Our high-quality blend of nutritious ingredients provides an ideal environment for the growth of various mushroom species. Ingredients: Uncle John's Famous MycoDirt combines ethically sourced Ecuadorian CoCo Coir with our premium blend of vermiculite & calcium solution. We Formulated this unmatched pairing to achieve the ideal nutrient enriched moisture balance that Mushrooms LOVE. How to use: Mix ingredients with boiling water in a bucket with a lid. Let sit until room temperature (2hrs) Your MycoDirt Is READY! Why choose Uncle John's MycoDirt Mushroom Substrate? Premium quality ingredients Suitable for various mushroom species, Simple and easy to use for beginners and experienced growers alike, Proven results for growing healthy, abundant mushrooms! Order your MycoDirt Mushroom Substrate today and start enjoying the benefits of home-grown mushrooms! ## Features - Easy to Use: *UPDATE* Premixed for customer convienence, and ready for use! Simply follow our quick pasturize video, with just a few easy steps you will be well on your way to having perfect flushes every grow. - Optimal Nutrient Balance: Expertly crafted with the perfect blend of coconut coir, vermiculite, and gypsum, providing the ideal nutrient composition for thriving dung-loving mushrooms. - Premium Quality for Dung-Loving Mushrooms: Our substrate is meticulously formulated with the finest coconut coir, vermiculite, and gypsum, providing a cleaner and more hygienic alternative for dung-loving mushroom species compared to traditional manure-based blends. - Superior Moisture Retention and Drainage: The combination of coco coir and vermiculite ensures optimal water retention, aeration, and drainage for a well-balanced growing environment. - Enriched with Essential Minerals: Gypsum fortifies our substrate blend with vital minerals, promoting robust mycelium growth and maintaining the ideal pH balance for your dung-loving mushrooms. ## Product Details - **Brand:** Uncle John's - **Style:** Coco Coir,Vermiculite - **Item Weight:** 51 Ounces - **Global Trade Identification Number:** 00197644950027 ## Images ![Uncle John's Famous: MycoDirt - Bulk Substrate Blend - for Growing Mushrooms - Coco Coir, Vermiculite, and Gypsum - Yields 10+ Pounds of Pasteurized Substrate - CVG Mix - Image 1](https://m.media-amazon.com/images/I/61LiZH74A1L.jpg) ![Uncle John's Famous: MycoDirt - Bulk Substrate Blend - for Growing Mushrooms - Coco Coir, Vermiculite, and Gypsum - Yields 10+ Pounds of Pasteurized Substrate - CVG Mix - Image 2](https://m.media-amazon.com/images/I/61bItNQkBmL.jpg) ![Uncle John's Famous: MycoDirt - Bulk Substrate Blend - for Growing Mushrooms - Coco Coir, Vermiculite, and Gypsum - Yields 10+ Pounds of Pasteurized Substrate - CVG Mix - Image 3](https://m.media-amazon.com/images/I/717FQKuDx8L.jpg) ![Uncle John's Famous: MycoDirt - Bulk Substrate Blend - for Growing Mushrooms - Coco Coir, Vermiculite, and Gypsum - Yields 10+ Pounds of Pasteurized Substrate - CVG Mix - Image 4](https://m.media-amazon.com/images/I/61mNKaxiEeL.jpg) ## Questions & Answers **Q: How long can this substrate store in the bucket if I don't use it all? Also how much substrate does this make?** A: Hi, you want to use the leftover substrate within a week and it will make 10lbs+! **Q: Hello! how much of each ingredient is included?** A: Hello! Apologies that this information was not listed. Thank you for bringing it to our attention. Uncle John's Recipes includes 750 grams of coco coir, 500 grams of vermiculite, and 200 grams of gypsum. Please let me know if you have any other questions. Thank you! ## Customer Reviews ### ⭐⭐⭐⭐⭐ easy to use *by K*** on February 28, 2024* simple mixing and coincidentally my harvest was great for first time using the product ### ⭐ Not nearly enough dirt in the package *by P***K on November 13, 2023* The first 2 times I bought Uncle John's mycodirt, it came with 3 packages that needed to be mixed in the bucket. It was simple enough and it worked out fine.I ordered again and the "updated product came premixed in 2 bags. They weighed 2.5 lbs in total. It seemed light for a 10 lb mix, bur I followed the directions to the letter. I ended up with 2" of standing water on top of the saturated dirt in the bucket. There is simply no way that 2.5 lbs of substrate can hold 14 cups of water! I emailed the company and have not heard a word back.I reordered the product and I got the same 2.5 lbs of premixed substrate. I boiled 14 cups of water as directed, and this time, I added it slowly, stirring it in with a sterile spoon instead of pouring it all in at once. There were 6 cups of water left over!Either the last 2 boxes I bought were short a bag of dirt or someone at Uncle John's neglected to update the directions in the YouTube video. Lest you think that I'm a dolt and can't follow directions, I was a full-time environmental scientist for more than 35 years. 14 CUPS IS WAY TOO MUCH WATER!In either case, it would have been nice if someone from the company had returned an email after I reached out .I won't be buying Uncle John's premixed substrate again ### ⭐⭐⭐⭐⭐ Great stuff. Instructions are very clear and this was my first time growing *by M***E on July 28, 2023* I selected this product after looking at a few others that were similar for mushroom substrate. There's quite a few that are pre-pasteurized, and despite this being my first time jumping into mycology, I decided to try this mix. It's a great product. The instructions are clear, and they even throw in a few stickers as well. Make sure you have a 5 gallon bucket that's clean and wiped down before you start. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/530243907-uncle-johns-famous-mycodirt-bulk-substrate-blend-for-growing-mushrooms](https://www.desertcart.hr/products/530243907-uncle-johns-famous-mycodirt-bulk-substrate-blend-for-growing-mushrooms) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-13*