--- product_id: 4489515 title: "Rot-Stop Tomato Blossom End Rot, 32 oz Ready-to-Use Spray | Garden Fertilizer For Calcium Deficiency in Plants" brand: "bonide" price: "R635" currency: ZAR in_stock: true category: "Bonide" url: https://www.desertcart.co.za/products/4489515-rot-stop-tomato-blossom-end-rot-32-oz-ready-to store_origin: ZA region: South Africa --- # foliar spray for quick calcium absorption targets blossom end rot in tomatoes & more 32 oz ready-to-use liquid Rot-Stop Tomato Blossom End Rot, 32 oz Ready-to-Use Spray | Garden Fertilizer For Calcium Deficiency in Plants **Brand:** bonide **Price:** R635 **Availability:** ✅ In Stock ## Summary > 🍅 Stop rot before it starts—your garden’s secret weapon! ## Quick Answers - **What is this?** Rot-Stop Tomato Blossom End Rot, 32 oz Ready-to-Use Spray | Garden Fertilizer For Calcium Deficiency in Plants by bonide - **How much does it cost?** R635 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/4489515-rot-stop-tomato-blossom-end-rot-32-oz-ready-to) ## Best For - bonide enthusiasts ## Why This Product - Trusted bonide brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Calcium Power Boost:** Instantly corrects calcium deficiency to prevent costly blossom end rot. - • **Effortless Application:** Ready-to-use formula mixes easily with water for quick hose-end or tank sprayer use. - • **Versatile Garden Savior:** Effective on tomatoes, cucumbers, melons, and peppers—one spray, multiple crops. - • **Foliar Feeding Advantage:** Delivers calcium directly to leaves for faster nutrient uptake and healthier plants. - • **Trusted Garden Essential:** Highly rated and ranked #105 in Garden Fertilizers—join thousands of thriving growers. ## Overview Bonide Rot-Stop Tomato Blossom End Rot Spray is a 32 oz ready-to-use liquid fertilizer designed to prevent calcium deficiency in vegetables. It targets blossom end rot in tomatoes and other crops by delivering nutritional calcium via foliar feeding. Easy to apply with hose-end or tank sprayers, it supports healthier, rot-free plants and is a top-rated solution trusted by gardeners nationwide. ## Description BONIDE Rot-Stop® Tomato Blossom Set Spray prevents end rot in tomatoes and other vegetables. It controls calcium deficiency to prevent end rot. ## Features - CORRECTS CALCIUM DEFICIENCY - Our garden fertilizer is used to control blossom end rot on tomatoes by adding calcium to the plant. - CONTAINS NUTRITIONAL CALCIUM - Plant food that uses nutritional calcium derived from calcium chloride as the main active ingredient. - MULTIPLE USES - Rot Stop is also effective at correcting calcium deficiencies for cucumbers, melons, and peppers. - EASY TO APPLY - Product instantly mixes with water and should be applied using either a hose-end sprayer or tank sprayer. Simply spray foliage to the point of run-off. Make sure to carefully read and use according to label directions. - FOLIAR FERTILIZATION - Intended as a supplement to a regular fertilization program and may not, by itself, provide all the nutrients normally required by crops or other intended plants. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000OWB63O | | Best Sellers Rank | #2,292 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #105 in Garden Fertilizers | | Brand Name | Bonide | | Coverage | varies | | Customer Reviews | 4.1 4.1 out of 5 stars (1,692) | | Global Trade Identification Number | 00037321001676 | | Included Components | Bonide Rot-Stop Tomato Blossom Set Spray Ready-To-Use, 32 oz | | Item Form | Liquid | | Item Type Name | Bonide Rot-Stop® Tomato Blossom Set Spray Ready-To-Use, 32 oz | | Item Weight | 2.3 Pounds | | Liquid Volume | 32 Fluid Ounces | | Manufacturer | Bonide | | Mixing Ratio | 2 oz: 1 gallon | | Model Number | 167A | | Number of Items | 1 | | Part Number | 167 | | Specific Uses For Product | Plant Food | | Target Species | Vegetables | | UPC | 037321001676 | | Unit Count | 32.0 Ounce | | Warranty Description | Warranty | ## Product Details - **Brand:** Bonide - **Item Form:** Liquid - **Item Weight:** 2.3 Pounds - **Liquid Volume:** 32 Fluid Ounces - **Specific Uses For Product:** Plant Food ## Images ![Rot-Stop Tomato Blossom End Rot, 32 oz Ready-to-Use Spray | Garden Fertilizer For Calcium Deficiency in Plants - Image 1](https://m.media-amazon.com/images/I/51Pi1ya0zzS.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: is this safe to use up to date of harvest?** A: We would recommend if you are applying on the day of harvest to make sure you thoroughly wash fruit and/or vegetables before consuming. **Q: Is there expiration on this product** A: According to a representative; I assume.. "A: We do not have expiration dates on our products. This is the manufacturing date. We recommend using our products 5-7 years from manufacturing date when properly stored." **Q: Will this help Stem rot cure?** A: Stem rot is caused by overwatering (or having mulch piled up around the stem) or from disease. Tomato blossom rot is caused by the inability of calcium and other nutrients to be able to make it into the blossom/tomato for good development and growth which can be a combination of lack of water and/or lack of nutrients in the soil. I use the the Bonide Rot-Stop as part of my defense against blossom end rot as I can only grow my plants in pots on my deck. An "empty jelly" section in a tomato combination of lack of water and/or lack of nutrients and that it almost ended up being thrown away because of end rot. **Q: Can this work on watermelon plants?** A: The label says it works on melons, but it has to be sprayed on the buds when they first appear. --- ## 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.co.za/products/4489515-rot-stop-tomato-blossom-end-rot-32-oz-ready-to](https://www.desertcart.co.za/products/4489515-rot-stop-tomato-blossom-end-rot-32-oz-ready-to) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-27*