Reusing Coffee Grounds: The Best Way to Fertilize Your Houseplants

Posted on May 26 2023

Being resourceful doesn’t have to be expensive or time-consuming. In fact, one of the best ways to fertilize your houseplants is by reusing coffee grounds that you would normally just throw away. Not only will this help you get more out of the coffee that you purchase, but it also creates a great food source for your plants. In this blog post, we will discuss the process of reusing coffee grounds to fertilize your houseplants, as well as some tips and tricks for making it work best.

Are coffee grounds good for plants?

The short answer is yes! Coffee grounds make an excellent fertilizer for houseplants. They contain a variety of nutrients that can help your plants grow and flourish, including nitrogen, phosphorus, potassium, magnesium and calcium. Additionally, coffee grounds are rich in organic matter which helps to improve the soil structure and increase aeration.

How to reuse coffee grounds in your garden or houseplants

Knowing how to use coffee grounds as a fertilizer is the key to getting the most out of them. The best way is to mix them into your soil when planting or repotting your houseplants. You can also sprinkle them around the base of each plant, which will slowly release nutrients as they break down. If you are using coffee grounds from a store-bought bag, make sure to check the label for any added ingredients that may not be suitable for plants.

There are also other ways of using coffee grounds in your garden and houseplants, such as making compost tea or adding it directly to water for liquid fertilizer. You can even use them as mulch! Lastly, if you have extra coffee grounds left over after fertilizing your plants, you can always use them in the garden to help deter pests.

When using coffee grounds for fertilizing houseplants there are a few steps you will want to follow:

1. Spread the used coffee grounds around your plant’s base- this provides a slow-release source of nutrition as they slowly break down into the soil.

2. Mix some of the used coffee grounds with compost or other organic material before applying it around the plant’s base- this will help to keep the soil moist and improve drainage.

3. Add a layer of compost or other organic material over the used coffee grounds, as this will help to retain moisture and protect the ground from drying out too quickly.

4. Water your plants regularly, but be sure not to overwater them. Too much water can cause root rot in some houseplants.

5. Monitor your plant’s growth regularly, keeping an eye out for signs of nutrient deficiencies or excessive nitrogen levels (which can cause yellowing leaves).

Coffee grounds are an excellent source of nutrition for your houseplants and they are easy to reuse. With just a few simple steps, you can turn waste coffee grounds into a nutrient-rich fertilizer that will help your plants flourish. So the next time you’re about to throw away those used grounds, think twice and consider reusing them to fertilize your houseplants!


Bonus Tip: Coffee grounds are also great for repelling pests such as slugs and snails. Simply sprinkle some around the base of the plant or mix them with water and spray directly onto the leaves. For best results, this should be done every couple of weeks. Additionally, you can use them in between mulch.


The Benefits of Using Coffee Grounds As a Fertilizer

Utilizing coffee grounds as a fertilizer for your houseplants is environmentally friendly and extremely beneficial to their well-being. By reusing the used grounds, you are providing essential nutrients while also boosting soil structure and aeration to retain moisture. The benefits of this method are numerous, so don't throw away those coffee grounds - give them a second life! Your plants will thank you with vibrant leaves and healthy roots.


Reusing coffee grounds is a great way to fertilize your houseplants, and it can also help reduce your environmental impact. When used correctly, coffee grounds can provide essential nutrients and improve drainage for your plants. Just remember to always check the label of any store-bought coffee grounds you are using, as some may contain added ingredients that may not be suitable for plant use. Now go forth and get those green thumbs growing! 

With a little bit of knowledge and effort, reusing coffee grounds to fertilize your houseplants can be an easy way to save on expenses and reduce environmental waste at the same time! So give it a try today, and see what amazing results you can achieve.