Feeding Your Worms: What to Feed, What to Avoid

Worms play a significant role in the ecosystem, aiding in soil aeration and waste decomposition, which can be beneficial for gardeners, fishermen, and even worm enthusiasts. But to ensure their health and productivity, it’s crucial to understand their dietary needs and habitat care.

Best Foods for Worms

Worms eat a variety of different foods. In many ways, they’re a lot like people. You can have a worm bin where one group of worms will eat a good source of one type of food, while another group prefers something else.

That said, here are some of the best foods for worms.

Fruits and vegetables:

These wriggly creatures have an appetite for numerous fruits and vegetables, including but not limited to apples, bananas, carrots, cucumbers, potatoes, and tomatoes. Fresh or decomposed, they can process these foods efficiently.

Coffee grounds and tea bags:

Coffee grounds and tea bags are a good source of nitrogen for worms. Just be sure to rinse them before adding them to your worm bin, as the caffeine can be harmful to worms in large quantities.

Cardboard and paper:

Cardboard and paper are a good source of carbon for worms. Just be sure to shred them into small pieces before adding them to your worm bin.

Yard waste

Yard waste such as leaves, grass clippings, and weeds is a great source of food for worms. Just be sure to avoid adding any diseased or moldy plants to your worm bin.


Manure is a good source of nutrients for worms, but it’s important to use it sparingly. Too much manure can make your worm bin smell bad and attract pests.

Foods to Avoid Feeding Worms

There are a few foods that you should avoid feeding your worms, including:

Meat and Dairy Products

These can cause rapid bacterial growth, leading to foul smells and potential pest attraction.

Oily or Greasy Foods

Oily or greasy foods can coat the worms’ bodies and make it difficult for them to breathe.

Citrus Fruits

Their acidic nature can upset the pH balance in the worm bin, making the environment inhospitable for worms.

Onions and Garlic

Their strong flavors and natural compounds can be repellent and harmful to worms.

Diseased or Moldy Foods

Always avoid introducing moldy or diseased foods as they can adversely affect worm health.

How Much to Feed Your Worms

Worms can eat a lot of food, but it’s important not to overfeed them. Overfeeding can lead to problems such as mold and pests. A good rule of thumb is to feed your worms as much as they can eat in a day or two. Bury the food under the bedding so that it doesn’t attract pests.

Be careful – underfeeding or overcrowding can encourage worm cannibalization. So it’s important to take good care of your worms.

Worm Farming Basics

Worm farming is a great way to recycle food scraps and other organic materials into nutrient-rich fertilizer. To set up a worm bin, you’ll need a bin with drainage holes, bedding for the worms, and food for the worms.

Subpod Mini


We’re proud to partner with a company like Subpod to offer their amazing worm bin/ garden hybrid products.  Subpod Mini was created to make composting fun, simple and more accessible than ever. Designed for smaller households and inner-city living, Subpod Mini rests below ground, taking up very little space. The lid is subtly visible above…

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Once you have your bin set up, add the bedding and food. Then, add your worms. Be sure to check on your worms regularly and add more food as needed. When the bedding is broken down and turned into castings, you can harvest the castings and use them to fertilize your plants.

How to Care for Your Worms

To keep your worms healthy and happy, it’s important to provide them with a good home. Here are a few tips:

  • Keep the bedding moist but not soggy.
  • Keep the bin in a cool, dark place.
  • Avoid overfeeding your worms.
  • Check on your worms regularly and remove any dead worms or moldy food.

How to Harvest Worm Castings

To harvest worm castings, simply remove the top layer of bedding from your worm bin and collect the castings. You can then add the castings to your garden or potted plants.

Worm castings are a great way to improve the fertility of your soil and boost the growth of your plants. They are also a good source of nutrients for worms, so you can add them back to your worm bin to create a sustainable ecosystem.


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