Best Compost Accelerators of 2025

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Compost accelerators are a range of organic products designed to speed up the composting process. These products are made from a blend of natural ingredients, such as bacteria, enzymes and fungi, that help to break down organic matter faster, resulting in nutrient-rich compost that can be used to fertilize plants and soil. Compost accelerators come in various forms, including powders, liquids and pellets, and can be added to compost bins or heaps to speed up the decomposition process. They are an eco-friendly and efficient way to convert kitchen and garden waste into useful compost, reducing the amount of organic matter that ends up in the dustbin or landfill.
At a Glance: Our Top Picks
Top 10 Compost Accelerators
Envii Compost Accelerator - Organic Compost Maker
The Envii Compost Accelerator is a natural solution that speeds up the breakdown of organic waste using millions of beneficial bacteria. This means you can enjoy rich, healthy compost all year round. It also contains essential nutrients and seaweed, which enhance the quality of your compost and promote stronger, healthier plants. Suitable for all compost bins, the product is easy to use—simply dissolve one tablet in water, making your composting experience hassle-free and efficient.
Garotta Compost Maker for Garden and Kitchen
The Garotta Compost Maker accelerates the natural composting process, making it easier for you to manage your garden and kitchen waste. With its active ingredients, including nitrogen and ground limestone, it provides essential food for bacterial growth, ensuring that your compost is rich in nutrients. Additionally, it effectively kills off weed seeds, giving you healthier compost. This product is perfect for anyone looking to transform their waste into valuable compost, helping you to garden sustainably and efficiently.
Elixir Gardens Compost Activator & Accelerator
The Elixir Gardens Compost Activator greatly speeds up the natural composting process, helping you produce high-quality compost more efficiently. This activator yields a rich, dark compost that is packed with nutrients, perfect for your gardening needs. It is ideal for use with garden cuttings and organic kitchen waste, making it easy to recycle your scraps. You can use this product in compost bins, plastic bags, or even open heaps, providing you with versatile options for composting.
VITAX Compost Maker for Garden Waste
The VITAX Compost Maker is an economical solution for creating rich, dark compost from your garden and kitchen waste. This specially formulated compost accelerator speeds up the breakdown of organic materials, making it easier for you to recycle grass cuttings, leaves, and even egg shells. By using this product, you can significantly reduce waste while enhancing the quality of your compost, giving your plants the nourishment they need to thrive. Embrace a greener lifestyle with the VITAX Compost Maker and watch your garden flourish.
BritishBasics 500ml Compost Accelerator Activator
The BritishBasics Compost Accelerator is designed to speed up the composting process, helping you produce rich, healthy, and organic compost. It is suitable for both compost heaps and bins, offering versatility in how you manage your composting efforts. This product is particularly effective during the cooler months, from autumn to spring, when temperatures are lower and composting can be slower. With its easy-to-use formula, you can simplify your composting experience and achieve better results.
Topline Garotta Compost Maker Bundle for Plants
The Topline Garotta Compost Maker is an excellent choice for anyone looking to enhance their gardening experience. This compost accelerator increases the speed of the composting process, allowing you to produce rich, healthy organic compost more quickly. It provides essential nutrients to promote bacterial growth, which helps to kill off weed seeds and create a dark, crumbly mixture. By using this product, you can effectively reduce waste that would otherwise go to landfill while enriching your garden soil in beds, borders, and vegetable patches.
Agralan Natural Compost Accelerator for Home & Garden
The Agralan Compost Accelerator significantly speeds up the composting process, helping you produce rich, healthy organic compost from your home and garden waste. Its safe and non-toxic formula contains a perfect blend of bacteria that efficiently transforms food scraps, peelings, eggshells, weeds, and dead plants into beautiful compost. You can use it on both wet and dry composting, making it versatile for your needs. Each sachet treats up to 15 bin bags or 600 litres, ensuring you get the most out of your composting efforts.
Gardening Naturally Natural Compost Accelerator 500ml
The Gardening Naturally Compost Accelerator is an effective solution for enhancing the composting process of your kitchen and garden waste. This product features a unique blend of bacteria that transforms food scraps, peelings, eggshells, weeds, and dead plants into nutrient-rich compost. By simply mixing 25ml of the accelerator with water, you can treat up to 100 litres of compost, making it incredibly convenient for your gardening needs. With the ability to manage around 2000 litres of compost, this accelerator is perfect for any avid gardener looking to enrich their soil.
Seedzbox Bokashi Bran Compost Accelerator 1kg
The Seedzbox Bokashi Bran is an effective compost accelerator that helps you turn food waste into nutrient-rich fertiliser quickly. By simply sprinkling 2 tablespoons of this bran each time you add organic matter, you activate the composting process. The bran is packed with beneficial microbes like bacteria, fungi, and yeast, which significantly speed up decomposition. Unlike traditional methods that can take months, this product can help you achieve compost in as little as one month, making it a convenient choice for any gardener.
ComPods Organic Compost Activator and Accelerator
The ComPods Compost Accelerator is designed to transform your waste into nutrient-rich compost quickly and efficiently. This fast-acting activator boosts the decomposition process in your compost bin, allowing you to convert organic matter into high-quality compost in less time. Ideal for outdoor plants, it improves nutrient absorption, resulting in healthier soil and flourishing gardens. With its eco-friendly design, you simply place a pod in your bin to activate its compost-making magic, making it an essential tool for sustainable gardening.
Frequently Asked Questions (FAQs)
1. What is a good compost accelerator?
1) Biomaster Compost-It Compost Accelerator – Top Pick The high concentration of organic microbes breaks down the items in your compost pile into their most basic form which can then be used to improve your soil. It's very easy to use and is suitable for a variety of composting methods including drums, piles, and bins.
2. What is a natural compost accelerator?
What is a Compost Accelerator? Compost accelerators (which can also be called compost activators or compost starters) are concentrated fungi and bacteria packages. When applied, they can jumpstart or bootstrap the decomposition process. They “accelerate” decomposition!
During our compost accelerator research, we found 47 compost accelerator products and shortlisted 10 quality products. We collected and analyzed 31,029 customer reviews through our big data system to write the compost accelerators list. We found that most customers choose compost accelerators with an average price of £11.09.
The compost accelerators are available for purchase. We have researched hundreds of brands and picked the top brands of compost accelerators, including envii, Garotta, Elixir Gardens, Vitax Ltd, BritishBasics. The seller of top 1 product has received honest feedback from 1,190 consumers with an average rating of 4.9.

Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.