--- product_id: 80294665 title: "Organic Cal-Mag OAC Plant Nutrient and Supplement, Plus Iron and Micronutrients by TPS Nutrients, 1 Gallon (128 oz)" brand: "tps nutrients" price: "VT28306" currency: VUV in_stock: true reviews_count: 8 category: "Tps Nutrients" url: https://www.desertcart.vu/products/80294665-organic-cal-mag-oac-plant-nutrient-and-supplement-plus-iron store_origin: VU region: Vanuatu --- # Organic Cal-Mag + Iron blend Optimized for soil & hydroponics 128 oz potent liquid formula Organic Cal-Mag OAC Plant Nutrient and Supplement, Plus Iron and Micronutrients by TPS Nutrients, 1 Gallon (128 oz) **Brand:** tps nutrients **Price:** VT28306 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your garden game with organic power-packed plant nutrition! ## Quick Answers - **What is this?** Organic Cal-Mag OAC Plant Nutrient and Supplement, Plus Iron and Micronutrients by TPS Nutrients, 1 Gallon (128 oz) by tps nutrients - **How much does it cost?** VT28306 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/80294665-organic-cal-mag-oac-plant-nutrient-and-supplement-plus-iron) ## Best For - tps nutrients enthusiasts ## Why This Product - Trusted tps nutrients brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Application:** Perfect for indoor gardens, outdoor soil, and hydroponic setups - • **Boosts Growth & Structure:** Enhances steady development and stronger stems - • **Balanced Organic Nutrition:** Premium Calcium, Magnesium & Iron for robust plant health - • **Trusted Quality, Made in USA:** Reliable, eco-friendly formula with top-tier manufacturing - • **Maximizes Nutrient Absorption:** Improves uptake efficiency for vibrant vitality ## Overview TPS Nutrients Organic Cal-Mag OAC is a 1-gallon liquid supplement delivering essential calcium, magnesium, iron, and micronutrients. Designed for both soil and hydroponic systems, it supports plant strength, growth, and nutrient uptake with an organic, USA-made formula trusted by thousands of gardeners. ## Description desertcart.com : Organic Cal-Mag OAC Plant Nutrient and Supplement, Plus Iron and Micronutrients by TPS Nutrients, 1 Gallon (128 oz) : Patio, Lawn & Garden Review: Very Great Product, Must have for any gardener! - I use this product because it’s organic and I use organic nutrients It’s worked wonders for me. I will always use this. I’ve had great results zero complaints. It’s a great price and it’s a big bottle. I definitely will recommend this to all of my friends. Review: Excellent product - I have been using TPS products for years . They are one of the best plant nutrients companies around. This cal mag really works . Helps with plant strength and bud quality . Highly recommend. ## Features - Organic Calcium & Magnesium Support – Formulated to supply essential nutrients for balanced plant nutrition. - Supports Plant Strength & Development – Helps encourage steady growth and healthy plant structure. - Improves Nutrient Uptake Efficiency – Supports absorption of key nutrients for plant vitality. - Ideal for Soil & Hydroponic Growing – Suitable for indoor plants, gardens, and hydroponic systems. - Made in USA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07CWQ7FPX | | ASIN | B07CWQ7FPX | | Best Sellers Rank | #19,262 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #708 in Garden Fertilizers | | Brand Name | TPS NUTRIENTS | | Customer Reviews | 4.7 4.7 out of 5 stars (1,469) | | Date First Available | May 7, 2018 | | Is Discontinued By Manufacturer | No | | Item Form | Liquid | | Item Weight | 128 Ounces | | Item model number | 857611006170 | | Manufacturer | TPS Nutrients | | Manufacturer | TPS Nutrients | | Number of Items | 1 | | Product Dimensions | 6 x 6 x 12 inches; 8 Pounds | | UPC | 857611006774 | | Unit Count | 128 Fluid Ounces | ## Product Details - **Brand:** TPS NUTRIENTS - **Item Form:** Liquid - **Item Weight:** 128 Ounces - **Number of Items:** 1 - **Unit Count:** 128 Fluid Ounces ## Images ![Organic Cal-Mag OAC Plant Nutrient and Supplement, Plus Iron and Micronutrients by TPS Nutrients, 1 Gallon (128 oz) - Image 1](https://m.media-amazon.com/images/I/71Ak4rg7mJL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very Great Product, Must have for any gardener! *by F***0 on April 27, 2025* I use this product because it’s organic and I use organic nutrients It’s worked wonders for me. I will always use this. I’ve had great results zero complaints. It’s a great price and it’s a big bottle. I definitely will recommend this to all of my friends. ### ⭐⭐⭐⭐⭐ Excellent product *by C***E on March 1, 2025* I have been using TPS products for years . They are one of the best plant nutrients companies around. This cal mag really works . Helps with plant strength and bud quality . Highly recommend. ### ⭐⭐⭐⭐⭐ TPS and MattyBudz *by M***K on April 26, 2023* It's not just your generic answer to problems growing cannabis.... it's the organic NITROGEN FREE calmag we all deserve for healthy photosynthesis and cell strength and over vigor. With zero nitrogen we run this exclusively at MattyBudz for years now, with nothing but excellent results. Our grow medium is coco coir so we needed a calmag that's clean and pure and it also happens to be organic. With zero deficiency in any growth due to calmag shortages at any stage for the least few years. I put all my new growers onto it and literally tell everyone who grows and needs a better calmag about it. Hands down there is no better calmag on the market. Thank you TPS Nutrient. ## Frequently Bought Together - Organic Cal-Mag OAC Plant Nutrient and Supplement, Plus Iron and Micronutrients by TPS Nutrients, 1 Gallon (128 oz) - Silica Gold Plant Strength Nutrient and Supplement with Bioavailable Silicon by TPS Nutrients, 1 Gallon (128 oz) - Signal Terpene Enhancer Plant Nutrient and Supplement, Flower Hardener and Increases Flavor by TPS Nutrients, 1 Gallon (128 oz) --- ## 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.vu/products/80294665-organic-cal-mag-oac-plant-nutrient-and-supplement-plus-iron](https://www.desertcart.vu/products/80294665-organic-cal-mag-oac-plant-nutrient-and-supplement-plus-iron) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-17*