8 Houseplants That Like Coffee Grounds

If you don’t want your coffee grounds to go to waste after your morning cup of java, you can actually use them as fertilizers to improve the quality of the soil, and in today’s article, we’ll walk you through some houseplants that like coffee grounds!

Coffee grounds make for an excellent fertilizer for many plants, as they contain a variety of nitrogenous compounds as well as essential minerals like potassium, phosphorus, magnesium, and even calcium, which benefit many popular houseplants like Pothos, Philodendrons, Snake Plant, Christmas Cactus, and more!

Keep on reading for more information about these plants! So without further ado, let’s dive right in!

1. Pothos

8 Houseplants That Like Coffee Grounds Pothos 1

Starting off with one of the most popular houseplants out there. Pothos, scientifically known as “Epipremnum aureum”, is widely grown as an indoor species because it is very easy to care for and can thrive in a variety of growing conditions.

Pothos requires fairly acidic soil with a pH of around 6.1 to 6.8, so adding coffee grounds to the potting mix will help in acidifying it.

Not only that, but the plant also requires minerals like potassium, phosphorus, and calcium as well as organic nitrogenous compounds in order to thrive, all of which are fairly abundant in coffee grounds.

With that being said, pothos also requires minerals like sulfur, which isn’t found in coffee grounds, so make sure that you use other formulas that supply such minerals.

2. Philodendron

Philodendron is another highly popular plant genus that is very popular as an indoor plant. The most characteristic feature of this plant is the brightly colored veins that run through the vibrant leaves.

The plant thrives in acidic soil with a pH that ranges between 5.0 and 6.0, so using coffee grounds and green compost will also help in acidifying the soil mix.

Coffee is rich in Calcium and Magnesium, which are two ingredients that are necessary for keeping those veins healthy and brightly colored. It’s also great for speeding up the plant’s growth in general.

You can either mix the coffee grounds with the soil directly or infuse them with the watering solution in a 1:1 ratio with the water.

With that being said, too much coffee grounds can actually be bad for philodendrons, so make sure that you don’t over-fertilize the plant with coffee grounds which can cause the lower leaves to wilt due to overfertilization.

Read more: How to Sterilize Soil for Houseplants

3. Snake Plant

The Snake plant is one of the most attractive house plants out there, and one thing you should know about this plant is that its vibrancy and colors are highly dependent on the quality of nutrition it gets.

So, despite being a low maintenance plant, its beauty really shows when you put in the effort to help the plant thrive.

The plant needs acidic soil with a pH that ranges between 5.5 to 7.5. While you can simply mix the coffee grounds with the potting soil, you’ll get the best results when you create a watering solution using the coffee grounds in a 2:3 ratio with the water.

Like Philodendrons, avoid over-fertilizing the plant. Instead, keep the coffee grounds limited to a rare treat once every 3 weeks.

4. Christmas Cactus

Christmas cactus

The Christmas cactus is a small genus of cactus plants that features around 9 species that are originally native to mountainous regions of Brazil.

The plant thrives in well drained potting mixes that are rich in organic materials and minerals. The ideal pH of the cactus is between 5.5 and 6.2, which makes coffee grounds perfect for the plant.

The presence of minerals like potassium and phosphorus in the soil is essential for controlling the drainage of the soil, which is important for succulents and cacti which hold up a lot of moisture to survive dry conditions.

This makes coffee an ideal addition to the soil mix that also improves the fertility of the growing medium, which helps in prolonging the blooming time of the flowers and intensifying their colors.

5. Crassula

The Crassula is a large genus that includes a wide variety of succulent plant species, especially the Jade plant (botanically known as “Crassula ovata”).

Similar to Cacti like the Christmas Cactus, these plants also depend on minerals in the soil to control the drainage of water in the soil and prevent stagnation.

By adding coffee grounds to the potting mix, the plant will be able to absorb as much moisture as possible, which allows the stems to grow thicker.

The nutrients in the Crassula are also essential for the general health of the leaves, which accounts for more vibrant color and overall health.

Keep in mind that using too much coffee grounds isn’t ideal for the plant, so make sure that you only incorporate them within the potting soil once every 8 to 12 months.

Related: 10 Common Houseplants That Love Acidic Soil

6. Cyclamen

Cyclamen is an impressive houseplant that is native to various parts of Europe, Africa, and Asia, especially the Mediterranean, Somalia, and Iran.

Different species of flowering plants grow flowers in a wide spectrum of colors, including pink, white, and red which are usually in bloom from late winter to late spring.

This plant is known for its resilience and hardiness, which allows it to grow in a wide variety of conditions.

The plant will benefit greatly from an occasional treat of coffee solutions, which is prepared by mixing coffee grounds with water in a 2:3 ratio.

You can even give them some fresh coffee solutions (after they cool off, of course), but make sure that it’s relatively weak coffee so that you don’t disrupt the pH of the soil greatly.

7. African Violet

As the name of the plant suggests, this plant is originally native to Africa, particularly Tanzania and Kenya.

Like other plants that are endemic to this region, the plants need a very dry environment, which makes an indoor plant almost exclusively.

African violet’s appetite for nitrogenous compounds is simply unmatched, as it needs the nutrients to sustain healthy growth for its fleshy leaves and vibrant purple flowers.

As a result, you can treat your plant to some cooled-off black coffee every now and then for optimal growth!

8. Peace Lilies

Peace lilies

The Peach Lily is one of the most popular houseplants that belong to the Spathiphyllum genus of the Araceae (Arum) Family.

The plant features some unique and exotic elements, especially in terms of foliage as well as flowers. Not only that, but it also purifies the air and improves its quality, which makes it a perfect indoor plant!

The plant requires relatively low pH soil to thrive, preferably between 5.8 and 6.5, and it requires a constant supply of nitrogen, potassium, and phosphorus in order to thrive.

Luckily, coffee is rich in these three ingredients, which makes it an excellent additive to the soil mix if you want to optimize the pH while adding some healthy nutrients and minerals to the growing medium.

However, avoid adding coffee directly to the soil of the plant because Peace Lilies can be a little sensitive to overfeeding as well as overwatering.

Wrap Up

This marks the end of today’s guide about the different species of houseplants that will thrive after using coffee grounds as a fertilizer.

Although coffee is an excellent source of nutrition for these houseplants, you should remember that different plants will have unique nutritional requirements that might include minerals that aren’t in coffee grounds.

As such, you have to find out about those ingredients too and make sure that you provide them to ensure optimal growth of your plants.