Should You Add Coffee Grounds To Your Houseplants - Backyard Boss
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Should You Add Coffee Grounds To Your Houseplants

Do you like your coffee with a little extra kick? If so, you might be interested in using some of those coffee grounds to help your houseplants grow. It turns out that coffee has some great benefits for plants and adding it to their soil can make them thrive.

A lot of people swear by the benefits of adding coffee grounds to their plants. But does it really work? And if so, which plants should you use them on? Keep reading to find out!

Coffee Grounds on Your Houseplants – What’s The Rub?

Dry coffee grounds
Image credits: Weerayuth via Shutterstock

Should you add coffee grounds to your houseplants? This is a question that many people ask, and there is no one answer that fits all plants. Used coffee grounds can be a good addition to many houseplants. Here’s why.

Coffee grounds have a low level of nitrogen, which is a nutrient that plants need for healthy growth. Nitrogen is an essential element of life, whether plant or human. Coffee grounds also contain other minerals that can be beneficial to plants, such as calcium and magnesium. In addition, coffee grounds can help improve the drainage and aeration of potting soil.

However, there is a strong caveat to this.

If you want to try using coffee grounds on your houseplants, start with a small amount and see how your plants respond. Some plants may benefit from a weekly application of coffee grounds, while others may do better with just a few applications per year.

It’s also important to make sure that the coffee grounds are completely dry before adding them to your plants, as wet coffee grounds can lead to mold growth and fruit flies. Additionally, adding coffee grounds to your houseplants may cause soil compaction. Be sure to till it into the soil if you choose to use it.

If you find a direct application of coffee grounds is giving you issues, you can always add them to your compost pile. This will help add nutrients to your plant’s soil.

It’s important to note, coffee grounds are highly toxic to pets. If you decide to sprinkle coffee grounds in your plants, make sure their on a high shelf and monitor your pets closely.

Houseplants That May Benefit from Coffee Grounds

Coffee grounds can actually be used to fertilize your houseplants and give them a boost of nutrients. But, only certain plants love a cup of joe.

Here are some houseplants that may benefit from coffee grounds:

African Violet

African violet
Image credits: Anita Bozic via Pixabay

African violets are one of the most popular houseplants in North America. They are beautiful, relatively low maintenance, and come in a wide range of colors and blooming habits. African violets also have the benefit of being able to thrive in indoor conditions that would be less than ideal for most other plants.

Coffee grounds can provide a number of benefits to your African violet. While you don’t want to use too much coffee ground mulch, a thin layer around your plant can help it to thrive.

Christmas Cactus

Image credits: Sabine via Pixabay

Christmas cactus houseplants are great for adding a festive touch to your home during the holidays. But did you know that they can also benefit from coffee grounds?

A liberal dusting of used coffee grounds in the late fall, around November, will keep your Christmas cactus healthy and thriving through the holiday season.


Hydrangea changeable large-leaved Garden French wild-growing bush. Variety of paniculate and tree-like hydrangea. Blue and pink flowers
Image credits: Alya_Ro via Shutterstock

Adding coffee grounds to your potted indoor hydrangea plants is an easy way to give them a nutritional boost and help keep them healthy.

To use coffee grounds as a fertilizer, simply sprinkle them carefully around the roots of the plant. Be sure to avoid using too much, as too much nitrogen can actually cause problems for plants like stunted growth or leaf burn.


heartleaf philodendron
Image credit[Sasha Kim] via [Pexels]
Philodendrons are native to the tropical regions of South America. As such, they prefer warm, humid environments. Coffee grounds can help create this type of environment by adding extra moisture and nutrients to the soil.

Simply sprinkle some grounds around the base of the plant every four weeks during the growth season, spring and summer, to help your Philodendron thrive.

Jade Plant

Jade plant in cachepot
Image credits: Engin_Akyurt via Pixabay

Jade plants are a type of succulent plant that is native to Africa. They are popular houseplants due to their easy-care requirements and ability to thrive in a variety of different environments. Jade plants can live for many years, and they often produce offsets or “baby” plants that can be propagated to create new plants.

One way to give your jade plant a boost is by using coffee grounds. Simply add a layer of coffee grounds on top of the potting mix every four weeks during the growing season during the summer.

Peace Lily

Peace Lily
Image credits: Lan Gao via Unsplash

While you may not think of coffee grounds as anything more than trash, they can actually be quite beneficial for your peace lilies.

Using coffee grounds to benefit your peace lily is easy – simply add them to the soil around your plant in the summertime to help them flower! Just be sure not to add too much – a thin layer is all you need.

As always, when adding anything new to your houseplant care routine, be sure to keep an eye on the plants and adjust as needed. Every plant is different and will respond differently to coffee grounds or any other amendments.

Share Your Coffee!

So, do coffee grounds work for plants? The answer is a yes with some precautions. Coffee grounds are great for adding nutrients to the soil and helping plants thrive, but always test before you commit!

If you’re looking for an easy way to give your plants a boost, add some coffee grounds to their soil today for some added nitrogen! Do you have any tips or tricks for using coffee grounds with plants? Leave a comment below!