---
product_id: 624658891
title: "Gardenwise 13-13-13 Slow Release Granular Fertilizer – All Purpose Plant Food..."
brand: "gardenwise"
price: "€ 27.29"
currency: EUR
in_stock: null
reviews_count: 8
url: https://www.desertcart.pt/products/624658891-gardenwise-13-13-13-slow-release-granular-fertilizer-all-purpose
store_origin: PT
region: Portugal
---

# 8 weeks feed 13% NPK Multiple sizes Gardenwise 13-13-13 Slow Release Granular Fertilizer – All Purpose Plant Food...

**Brand:** gardenwise
**Price:** € 27.29
**Availability:** ❌ Out of Stock

## Summary

> 🌼 Grow Together: Unleash the potential of your garden with our all-purpose fertilizer!

## Quick Answers

- **What is this?** Gardenwise 13-13-13 Slow Release Granular Fertilizer – All Purpose Plant Food... by gardenwise
- **How much does it cost?** € 27.29 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/624658891-gardenwise-13-13-13-slow-release-granular-fertilizer-all-purpose)

## Best For

- gardenwise enthusiasts

## Why This Product

- Trusted gardenwise brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Use:** Perfect for lawns, gardens, potted plants, and more – suitable for all outdoor plants.
- • **Flexible Sizing:** Available in sizes from 1/2 quart to 20 quarts to fit any gardening project.
- • **Balanced Nutrition:** Achieve optimal growth with 13% Nitrogen, Phosphorus, and Potassium.
- • **Long-Lasting Results:** Enjoy up to 8 weeks of continuous feeding with just one application.
- • **Effortless Application:** Fine granules ensure even distribution for maximum nutrient absorption.

## Overview

The 13-13-13 Slow Release Granular Fertilizer is a balanced all-purpose plant food designed for outdoor use. It contains 13% Nitrogen, 13% Phosphorus, and 13% Potassium, providing essential nutrients for a variety of plants including lawns, vegetables, flowers, and shrubs. The slow-release formula ensures continuous feeding for up to 8 weeks, making it ideal for busy gardeners. Available in multiple sizes, this fertilizer is perfect for any gardening project, from small potted plants to expansive lawns.

## Description

Full description not available

## Features

- 🌿 Balanced 13-13-13 Fertilizer for Outdoor Plants: Provides 13% Nitrogen, 13% Phosphorus, and 13% Potassium for optimal growth. Perfect for lawns, vegetable gardens, rose bushes, flowers, shrubs, and trees. Ideal for St. Augustine grass, evergreens, and all outdoor plants.
- ⏳ Slow-Release Formula for Continuous Feeding: Feeds plants and grass for up to 8 weeks with one application. Ideal for lawns, flower beds, vegetable gardens, and potted plants. Fewer applications, healthier plants!
- 🌼 Promotes Strong Roots, Lush Foliage, and Vibrant Blooms: Phosphorus develops deep roots, Nitrogen fuels green growth, and Potassium boosts resilience. Great for roses, tomatoes, peppers, herbs, and flowers. Enjoy thriving plants and abundant harvests!
- 🌱 Easy-to-Apply Granules for Even Distribution: Fine granules ensure maximum soil contact and efficient nutrient absorption. Suitable for lawns, garden beds, vegetables, fruit trees, and flowering plants. Simple for beginners and pros alike!
- 🛍 Available in Multiple Sizes: Choose the perfect size for your needs – from 1/2 quart (1 lb) to 20 quarts (40 lbs). Ideal for small gardens, large lawns, and everything in between. Flexible options for all your gardening projects!

## Product Details

- **Brand:** GARDENWISE
- **Item Weight:** 16 ounces
- **Item Form:** Granules
- **Liquid Volume:** 0.5 Quarts
- **Specific Uses For Product:** All Purpose and Starter Fertilizer

## Images

![Gardenwise 13-13-13 Slow Release Granular Fertilizer – All Purpose Plant Food... - Image 1](https://m.media-amazon.com/images/I/81RmNUxv4EL.jpg)
![Gardenwise 13-13-13 Slow Release Granular Fertilizer – All Purpose Plant Food... - Image 2](https://m.media-amazon.com/images/I/81-syJ02u8L.jpg)
![Gardenwise 13-13-13 Slow Release Granular Fertilizer – All Purpose Plant Food... - Image 3](https://m.media-amazon.com/images/I/814MtyA1cHL.jpg)
![Gardenwise 13-13-13 Slow Release Granular Fertilizer – All Purpose Plant Food... - Image 4](https://m.media-amazon.com/images/I/81n1dSAMdXL.jpg)
![Gardenwise 13-13-13 Slow Release Granular Fertilizer – All Purpose Plant Food... - Image 5](https://m.media-amazon.com/images/I/81pEnIjgoPL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Use however you wish
*by K***N on July 7, 2025*

I use this item different than recommended.... I have gorgeous hydrangeas and everything that I've ever bought that was supposed to turn the blue. Turned them pink. It's the soil I'm sure, I did my research and decided to buy this instead. They're starting to pop blue. It's a purplish blue but it's the bluish blue I've ever gotten from them since I bought them and when I bought them they were blue

### ⭐⭐⭐⭐⭐ Well balanced slow-release granular fertilizer.
*by R***Y on June 18, 2025*

This is my second 10 lb purchase of 10 10 10 this year. Love this stuff! The granular fertilizer works well for my needs, and I use it confidently on almost everything, without concern, including various fruit trees and flowers.Tip: If you have any doubts about where and how to use 10 10 10, Google is a fantastic tool. I simply ask something like, Can I use 10 10 10 on my new Satsuma Mandarin tree in my State? Google responses are right on the money for me, and eventually you just know what to do and how to do it.Tip: If you have pear trees, you might want to go easy, and water in well. I burned the leaves just a bit.

### ⭐⭐⭐⭐⭐ Make our berries go nuts
*by C***S on July 7, 2025*

We used this on our black raspberries in the spring as suggested. Really gave us a great crop of berries. Will definitely be using this againEffectiveness:works greatValue for money:lots for your moneyEase of use:we used a shaker but it went on easyFertilizer effectiveness:Gave us a bumper crop of berries

## Frequently Bought Together

- Gardenwise 13-13-13 Slow Release Granular Fertilizer – All Purpose Plant Food 13 13 13 for Outdoor Grass, Vegetables, Roses, Flowers, Shrubs, Trees. Lawns, Gardens, Potted Plants (1/2 Quart)
- GARDENWISE 10-10-10 All Purpose Plant Food - Liquid Fertilizer with Seaweed Kelp & Iron - Indoor & Outdoor Plant Food, Vegetables, Flowers, Lawn & Garden 1x8oz
- NATRIA Neem Oil Spray for Plants, Ready-to-Use, 24 Oz

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**Shop now:** [https://www.desertcart.pt/products/624658891-gardenwise-13-13-13-slow-release-granular-fertilizer-all-purpose](https://www.desertcart.pt/products/624658891-gardenwise-13-13-13-slow-release-granular-fertilizer-all-purpose)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-22*