--- product_id: 43589230 title: "MasterBlend 4-18-38 Tomato & Vegetable Fertilizer - Bulk 1, 5 or 25 Pounds (1 Pound)" brand: "masterblend" price: "€ 35.84" currency: EUR in_stock: true category: "Master Blend" url: https://www.desertcart.be/products/43589230-masterblend-4-18-38-tomato-and-vegetable-fertilizer-bulk-1 store_origin: BE region: Belgium --- # Super concentrated formula for maximum efficiency Balanced NPK ratio 4-18-38 tailored for tomatoes & veggies 100% water soluble for instant nutrient delivery MasterBlend 4-18-38 Tomato & Vegetable Fertilizer - Bulk 1, 5 or 25 Pounds (1 Pound) **Brand:** masterblend **Price:** € 35.84 **Availability:** ✅ In Stock ## Summary > 🌱 Grow like a pro—unlock your garden’s full potential with MasterBlend! ## Quick Answers - **What is this?** MasterBlend 4-18-38 Tomato & Vegetable Fertilizer - Bulk 1, 5 or 25 Pounds (1 Pound) by masterblend - **How much does it cost?** € 35.84 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/43589230-masterblend-4-18-38-tomato-and-vegetable-fertilizer-bulk-1) ## Best For - masterblend enthusiasts ## Why This Product - Trusted masterblend brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Easy Mix & Apply:** Fully water soluble powder ensures quick absorption and hassle-free feeding - • **Hydroponic Powerhouse:** Trusted by commercial growers for consistent, high-yield results - • **Customizable Bulk Options:** Available in 1, 5, or 25-pound sizes to fit your garden scale - • **Complete Nutrient Spectrum:** Includes all essential trace minerals for vibrant plant health - • **Optimized for Tomatoes & Veggies:** Specially formulated NPK ratio boosts fruiting and vegetable growth ## Overview MasterBlend 4-18-38 Tomato & Vegetable Fertilizer is a highly concentrated, 100% water-soluble powder designed for hydroponic and soil gardens. It delivers a precise nutrient balance optimized for tomatoes and vegetables, enriched with essential trace minerals. Available in bulk sizes, it’s the go-to choice for commercial and home growers seeking reliable, high-yield results. ## Description MasterBlend fertilizers have been the go-to Hydroponic and Garden fertilizers for commercial gardeners for a long time. Their 4-18-38 Tomato and Vegetable Fertilizer provides proven results time after time. Because of the unique composition, it is recommended to use the 4-18-38 together with Magnesium Sulfate (Epsom Salt) and Calcium Nitrate for the ultimate balanced water soluble fertilizer. MasterBlend 4-18-38 is Water Soluble Direct from MasterBlend - Fertilizer for Tomatoes and Vegetables Highly concentrated! Master Blend fertilizer is perfect for Hydroponics and Soil gardens ## Features - MasterBlend 4-18-38 Fertilizer in Bulk - Choose 1, 5, or 25 Pound Quantities - MasterBlend World renowned Hydroponic Vegetable Fertilizer for Peppers and Tomatoes! - Super concentrated and easy to use! - MasterBlend is 100% water soluble, and contains all the trace minerals needed! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071HB13XR | | Best Sellers Rank | #41,071 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #928 in Garden Fertilizers | | Brand | MasterBlend | | Brand Name | MasterBlend | | Coverage | Medium | | Customer Reviews | 4.6 out of 5 stars 475 Reviews | | Item Form | Powder | | Item Weight | 16 ounces | | Manufacturer | MasterBlend | | Mixing Ratio | 12:6:12 | | Model Number | MASTERBLEND 4-18-38 (1 POUND) | | Number of Items | 1 | | Number of Packs | 3 | | Part Number | MASTERBLEND 4-18-38 (1 POUND) | | Specific Uses For Product | Hydroponic | | Target Species | tomatoes and vegetables | | UPC | 600150826019 | | Unit Count | 16 Ounce | ## Product Details - **Brand:** MasterBlend - **Item Form:** Powder - **Item Weight:** 16 ounces - **Number of Packs:** 3 - **Specific Uses For Product:** Hydroponic ## Images ![MasterBlend 4-18-38 Tomato & Vegetable Fertilizer - Bulk 1, 5 or 25 Pounds (1 Pound) - Image 1](https://m.media-amazon.com/images/I/71qG3EmNicL.jpg) ![MasterBlend 4-18-38 Tomato & Vegetable Fertilizer - Bulk 1, 5 or 25 Pounds (1 Pound) - Image 2](https://m.media-amazon.com/images/I/81d3Ga3OdwL.jpg) ![MasterBlend 4-18-38 Tomato & Vegetable Fertilizer - Bulk 1, 5 or 25 Pounds (1 Pound) - Image 3](https://m.media-amazon.com/images/I/81nqNsGtMKL.jpg) ## Questions & Answers **Q: Is there a kit available that contains the master blend, and also the calcium nitrate and magnesium sulfate . sure would be nice .** A: Yes, sold in amazon and work great. Instructions on the bag and good price. **Q: What the best way to adjust EC if its to low and you already mixed all 3 parts together** A: First, you should not mix the calcium nitrate together with the master blend and magnesium sulfate (EPSON salts) at the same time. Mix the master blend and EPSON salts together and mix the calcium nitrate separately before adding to your nutrient solution. When you mix all 3 together at the same time it binds up the nutrients and they can’t release properly. See if mixing them separately before adding helps. **Q: Can this fertilizer be applied directly to container plants or must it only be used in a hydroponic system?** A: Container plants will love this. I top dress soil and water in. I also measure it in filtered water to apply. It's very good stuff. **Q: Newby here, I have an organic container garden, are this supplements synthetic? I purchased this and not sure if I should use it.** A: Totally synthetic, so now what? ## Frequently Bought Together - MasterBlend 4-18-38 Tomato & Vegetable Fertilizer - Bulk 1, 5 or 25 Pounds (1 Pound) - Calcium Nitrate 15.5-0-0 Fertilizer Bulk Pricing (5 POUNDS) --- ## 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.be/products/43589230-masterblend-4-18-38-tomato-and-vegetable-fertilizer-bulk-1](https://www.desertcart.be/products/43589230-masterblend-4-18-38-tomato-and-vegetable-fertilizer-bulk-1) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-10-01*