--- product_id: 7802070 title: "Jack's Classic 15-30-15 Houseplant Special Water-Soluble Fertilizer, 8oz" brand: "jack's classic" price: "172.29 DT" currency: TND in_stock: true reviews_count: 8 category: "Jack's Classic" url: https://www.desertcart.tn/products/7802070-jacks-classic-15-30-15-houseplant-special-water-soluble-fertilizer store_origin: TN region: Tunisia --- # 15-30-15 NPK for lush growth Water-soluble powder for max dilution Includes precise measuring spoon Jack's Classic 15-30-15 Houseplant Special Water-Soluble Fertilizer, 8oz **Brand:** jack's classic **Price:** 172.29 DT **Availability:** ✅ In Stock ## Summary > 🌱 Feed your green space like a pro — never miss a growth moment! ## Quick Answers - **What is this?** Jack's Classic 15-30-15 Houseplant Special Water-Soluble Fertilizer, 8oz by jack's classic - **How much does it cost?** 172.29 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/7802070-jacks-classic-15-30-15-houseplant-special-water-soluble-fertilizer) ## Best For - jack's classic enthusiasts ## Why This Product - Trusted jack's classic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Micronutrient Boost:** Enhanced with essential micronutrients for healthier, stronger plants - • **Dual Feeding Flexibility:** Use as foliar spray or root drench for targeted plant nutrition - • **Economical & Easy to Use:** Powder form stretches further with included measuring spoon for perfect mixes - • **Balanced 15-30-15 Formula:** Optimized nutrient ratio for vibrant foliage and abundant blooms - • **Extended Nutrient Release:** Feeds plants gradually for up to 4 months of sustained growth ## Overview Jack's Classic 15-30-15 Houseplant Special is a water-soluble powder fertilizer designed to promote vigorous growth and vibrant blooms in houseplants. Featuring a balanced nutrient profile with added micronutrients, it supports strong roots and lush foliage. The included measuring spoon ensures precise mixing, while its versatile application methods—foliar or root feeding—offer convenience and efficiency. With gradual nutrient release lasting up to 4 months, this 8oz concentrate delivers exceptional value and consistent plant health. ## Description Releases nutrients gradually for up to 4 months of vigorous growth. Blended with an enhanced micronutrient package which provides optimal nutrition for strong roots and green foliage. Features the highest safety factor to prevent burning when applied as directed. Free measuring spoon enclosed for easy and precise application. Review: Jack’s keeps my plants happy and growing - I’ve tried other fertilizers for my houseplants in the past but always come back to Jack’s. In the summer I use it every watering indoors and every other for the ones that sit outside for the summer. I use 2 gal jugs and cans and add one tablespoon each. I pull back to once a month or so in the cold months. You get a ton and it goes a long way. Great value. My plants grow so much with Jack’s. Sometimes I run out and don’t rush to replenish. I am always surprised when I start back using it and see the difference. I don’t usually have issues with burns, but I am as careful as I can be to avoid getting it on the leaves, especially if they’re in sunlight while watering. Review: Very healthy plant food - I’ve been using this houseplant fertilizer for a couple of months now and my plants look amazing. I really like this food and respond very well. ## Features - 15-30-15 Analysis - Great for keeping houseplants vigorous and green and increasing the quality and quantity of blooms in flowering plants. - Many Ways to Feed - Houseplant Special can be used as a foliar or root feeding product. Great for spraying directly onto leaves, roots, or when used in a continuous feed system. - Water-Soluble Powder – Powdered concentrates go further than liquid fertilizers. Simply mix your measured powder with water and you are ready to feed with multiple gallons of liquid fertilizer! - Included Measuring Spoon – All Jack’s Classic fertilizers come with a convenient spoon to create the right amount of liquid fertilizer for your plants. - Micronutrients - Added micronutrients supply your plant with the nutrition it needs for optimal growth and health. Unlike other fertilizers, additional feeding is not required. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00KSMQM0M | | Application Method | Spray, Mix with water | | Best Sellers Rank | #31,135 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #905 in Garden Fertilizers | | Brand | Jack's Classic | | Brand Name | Jack's Classic | | Coverage | Medium | | Customer Reviews | 4.7 out of 5 stars 812 Reviews | | Global Trade Identification Number | 00671341515081 | | Included Components | only product | | Item Form | Powder | | Item Weight | 8 ounces | | Liquid Volume | 0.24 liters | | Manufacturer | JR Peters | | Mixing Ratio | 1 teaspoon per gallon of water | | Model Number | 51508 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | 51508 | | Specific Uses For Product | Houseplant Care, Foliar Feeding, Root Feeding, Plant Growth, Flowering Plant Support | | Target Species | Plant | | UPC | 671341515081 | | Unit Count | 1 Count | ## Product Details - **Brand:** Jack's Classic - **Item Form:** Powder - **Item Weight:** 8 Ounces - **Liquid Volume:** 0.24 Liters - **Specific Uses For Product:** Houseplant Care, Foliar Feeding, Root Feeding, Plant Growth, Flowering Plant Support ## Images ![Jack's Classic 15-30-15 Houseplant Special Water-Soluble Fertilizer, 8oz - Image 1](https://m.media-amazon.com/images/I/71j1fvHZ3kL.jpg) ![Jack's Classic 15-30-15 Houseplant Special Water-Soluble Fertilizer, 8oz - Image 2](https://m.media-amazon.com/images/I/81xhtjfFoIL.jpg) ![Jack's Classic 15-30-15 Houseplant Special Water-Soluble Fertilizer, 8oz - Image 3](https://m.media-amazon.com/images/I/81USI6dMs3L.jpg) ![Jack's Classic 15-30-15 Houseplant Special Water-Soluble Fertilizer, 8oz - Image 4](https://m.media-amazon.com/images/I/815bOckHa8L.jpg) ![Jack's Classic 15-30-15 Houseplant Special Water-Soluble Fertilizer, 8oz - Image 5](https://m.media-amazon.com/images/I/81Mshsu+RPL.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Questions & Answers **Q: Can this be used on outdoor plants?** A: Yes it can but it depends on the needs of your plants. They also have a blossom booster and all purpose formula that I use outside. **Q: What’s the difference between “all purpose” and “special”?** A: I would think that all purpose applies to all. And special meaning that it contains superb ingredients **Q: Is there any differences between this jr peters houseplant special 15-30-15 and jr peters all-purpose 20-20-20?** A: 15-30-15 is double the amount of phosphorus. It’s best to check on each plant to find out what fertilizer is suitable. **Q: Should this be refrigerated when storing in a very humid environment?** A: I keep mine under kitchen sink and we love in Florida👍🏻 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Jack’s keeps my plants happy and growing *by C***E on August 17, 2024* I’ve tried other fertilizers for my houseplants in the past but always come back to Jack’s. In the summer I use it every watering indoors and every other for the ones that sit outside for the summer. I use 2 gal jugs and cans and add one tablespoon each. I pull back to once a month or so in the cold months. You get a ton and it goes a long way. Great value. My plants grow so much with Jack’s. Sometimes I run out and don’t rush to replenish. I am always surprised when I start back using it and see the difference. I don’t usually have issues with burns, but I am as careful as I can be to avoid getting it on the leaves, especially if they’re in sunlight while watering. ### ⭐⭐⭐⭐⭐ Very healthy plant food *by A***R on December 12, 2025* I’ve been using this houseplant fertilizer for a couple of months now and my plants look amazing. I really like this food and respond very well. ### ⭐⭐⭐⭐⭐ Great fertilizer! *by J***S on October 2, 2025* I have been using a blue fertilizer for many years and then I couldn't find it anymore. I don't think this is the same brand but it works just as well. I put about a quarter of a teaspoon in my water and water with the fertilizer every other watering. My plants are beautiful! It also comes with a little measuring cup and chart which is very useful. So glad I found this!!! ## Frequently Bought Together - Jack's Classic 15-30-15 Houseplant Special Water-Soluble Fertilizer with Micronutrients to Green-Up and Increase Blooms in Houseplants, 8oz - Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 1.5lbs - Jack's Classic 30-10-10 Orchid Special Water-Soluble Fertilizer with Micronutrients and Extra Nitrogen, Used for Turfs and Ornamental Grasses, 8oz --- ## 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.tn/products/7802070-jacks-classic-15-30-15-houseplant-special-water-soluble-fertilizer](https://www.desertcart.tn/products/7802070-jacks-classic-15-30-15-houseplant-special-water-soluble-fertilizer) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-10*