Learn how to compost for houseplants with this comprehensive guide. Discover the benefits of vermicomposting and in-vessel composting, and get practical tips for successful composting. Improve soil health, reduce waste, and nourish your indoor plants with nutrient-rich compost. Start composting today for greener houseplant care.


Composting is an essential practice for sustainable gardening and houseplant care. It offers numerous benefits, including improved soil health, reduced waste, and cost-effectiveness. In this article, we will explore different composting methods suitable for houseplants and provide practical tips for successful composting. Whether you’re an experienced gardener or just starting with houseplants, this guide will help you harness the power of composting to support the growth and vitality of your indoor plants.

Vermicomposting: Nature’s Little Helpers

One of the most effective and sustainable composting methods for houseplants is vermicomposting. Vermicomposting involves using red worms, specifically Eisenia fetida, to break down organic matter. These voracious creatures consume food scraps and yard trimmings, producing nutrient-rich castings called worm castings.

The castings produced by red worms are of high quality and can be used as potting soil for houseplants. These castings are rich in essential nutrients, enzymes, and beneficial microorganisms that enhance soil fertility and plant health. Vermicomposting is particularly suitable for apartment dwellers or those with limited outdoor space.

To start vermicomposting, you will need a worm bin. Worm bins can be purchased or built at home using a large plastic container with a lid. The bin should have drainage holes at the bottom to allow excess moisture to escape.

Add a bedding material such as shredded newspaper or cardboard to the bin, moistening it with water until it feels like a damp sponge. Then, introduce the red worms to the bin. Mature worms can consume up to half a pound of organic material per day, so start by adding small amounts of kitchen scraps or yard waste initially.

Maintain the worm bin by regularly adding organic materials, avoiding acidic or pungent food scraps, and keeping the bedding moist but not soaked. The worms require a temperature range of 55-77°F (13-25°C) for optimal activity, so it’s important to place the bin in a suitable location.

Within three to four months, the worms will have produced a sufficient amount of castings that can be harvested. Simply separate the castings from the remaining organic material, and you will have nutrient-rich compost ready for use. Another byproduct of vermicomposting is “worm tea,” a liquid fertilizer that can be diluted and used to nourish houseplants or outdoor gardens.

In-Vessel Composting: Efficient and Odor-Free

Another sustainable composting method suitable for houseplants is in-vessel composting. In-vessel composting involves using specially designed containers or equipment to compost organic materials in a controlled environment.

Different types of vessels can be used for in-vessel composting, including drums, silos, or similar equipment. These vessels allow for control of environmental conditions such as temperature, moisture, and airflow. The organic materials, including food scraps, can be loaded into the vessel and mixed or turned mechanically to ensure proper aeration.

In-vessel composting is highly efficient and can handle various types of organic waste, including meat, animal manure, biosolids, and food scraps. The controlled environment accelerates the composting process, allowing the production of compost in just a few weeks. However, the compost may need additional time to mature fully before it is ready for use.

One of the advantages of in-vessel composting is its minimal odor and leachate production. The vessels contain the composting materials, preventing foul smells and reducing the risk of attracting pests. In addition, in-vessel composting requires less land and manual labor compared to traditional composting methods like windrow composting.

In-vessel composting can be implemented on a small scale, such as in a school or restaurant kitchen, or on a larger scale for commercial purposes. It provides an efficient and sustainable way to manage organic waste while producing nutrient-rich compost for houseplants and gardens.

General Composting Tips for Houseplants

While vermicomposting and in-vessel composting are effective methods for composting houseplants, there are some general composting tips that can be applied to any composting system. These tips will help ensure successful composting and provide optimal conditions for your houseplants:

1. Balance Carbon and Nitrogen

Maintaining a balance between carbon-rich (brown) and nitrogen-rich (green) materials is essential for successful composting. A good rule of thumb is to aim for a carbon-to-nitrogen ratio of 25 to 30 parts carbon for every 1 part nitrogen. Carbon-rich materials include dead leaves, branches, twigs, and paper, while nitrogen-rich materials include fresh grass clippings, kitchen scraps, and coffee grounds.

2. Provide Adequate Aeration

Composting is an aerobic process, meaning it requires oxygen to support the activity of beneficial bacteria and other microorganisms. Ensuring proper aeration can be achieved by layering composting materials, shredding them into smaller pieces, and turning the pile regularly. This helps introduce fresh oxygen and promotes even decomposition.

3. Monitor Moisture Levels

Maintaining the right moisture level is crucial for composting. The compost pile should have a moisture level similar to that of a wrung-out sponge. If the compost becomes too dry, it may slow down the decomposition process. Conversely, if it becomes too wet, it can become compacted and lead to anaerobic conditions. Regularly monitor and adjust the moisture levels as needed.

4. Consider Composting Bin Options

Choose a composting bin or container that suits your needs and space availability. Closed bins, open bins, and tumblers are popular options for composting houseplants. Closed bins offer better temperature control and odor containment, while open bins allow for easier turning and aeration. Tumblers provide efficient mixing and faster composting but may have limited capacity.

5. Utilize Trench Composting

Trench composting is an alternative method for houseplant composting. It involves burying organic waste directly into the soil. Dig a trench in your garden or houseplant bed, add organic materials, and cover them with soil. The composting process will occur underground, enriching the soil as it decomposes. Trench composting offers a simple and space-saving solution for composting houseplants.


Composting is a sustainable and effective way to nourish houseplants and contribute to environmental sustainability. By utilizing methods like vermicomposting or in-vessel composting, you can transform organic waste into nutrient-rich compost for your indoor plants. Remember to maintain a balance of carbon and nitrogen, ensure proper aeration and moisture levels, and choose a composting system that suits your space and needs. With composting, you can support the growth and vitality of your houseplants while reducing waste and promoting a greener future.