This post may contain affiliate links.
Used coffee grounds can actually be a handy addition to your garden. Instead of tossing them out, you can mix them into your soil to give many plants a little extra support as they grow.
They add organic matter, which helps loosen the soil and improve drainage, while also helping it hold onto moisture a bit longer. Coffee grounds also contain small amounts of nutrients like nitrogen, phosphorus, and potassium that plants use for steady growth. On top of that, they can attract helpful soil organisms and may even discourage pests like ants and slugs.
Some people think coffee grounds will make soil much more acidic, but the effect is mild and doesn’t last very long. Even so, they can still be a good addition, especially for plants that enjoy richer soil.
Here are 12 plants that do well with coffee grounds added to the mix.
1. Roses
Roses benefit greatly from the nitrogen content in coffee grounds, which promotes lush foliage and vibrant blooms. To make the most of these nutrients, apply coffee grounds in early spring, just before the growing season begins.
2. Tomatoes
Apply coffee grounds to the soil around young tomato plants in the spring for a nitrogen boost that gets them off to a strong start. Coffee grounds also improve soil structure, helping to retain moisture for these thirsty plants.
Grow the Season’s Best Tomatoes with These 15 Companion Plants
3. Grapes
Coffee grounds will improve soil fertility and encourage vigorous grapevine growth. For the best results, incorporate coffee grounds into the soil at the base of grapevines in the spring.
4. Basil
Coffee grounds stimulate leafy growth in basil plants, guaranteeing lush harvests all summer long. Basil and tomatoes are the perfect companions and both happen to love coffee grounds, so it’s a win-win situation all around!
How to Start a Herb Garden from Scratch
5. Azaleas
Coffee grounds provide essential nutrients that lead to healthier azalea plants with prolific blooms. It’s best to apply coffee grounds in the spring, as the azaleas begin to show new growth, ensuring they have the resources needed for robust flowering.
19 Flowers You’ll Adore If You Love Hydrangeas
6. Carrots
Carrots benefit from the slow-release nutrients provided by coffee grounds, which help improve root development and overall growth. Mixing coffee grounds into the soil before sowing carrot seeds in the spring can lead to a better harvest.
7. Blackberries
Apply coffee grounds to the base of blackberry canes in the spring or fall to enrich the soil and support healthy growth and fruit production.
8. Parsley
Like most leafy green herbs, parsley benefits from the slow-release nutrients in coffee grounds. Mix coffee grounds into the soil in the spring to enhance its fertility and structure, boosting your parsley harvest.
9. Camellias
Camellias benefit from the organic matter and nitrogen that coffee grounds introduce into the soil. These elements encourage strong leaf growth and enhance the plant’s health, leading to more vibrant blooms.
10. Radishes
Radishes grow incredibly quickly and need highly fertile soil to support this rapid growth. The nitrogen in coffee grounds supports the development of healthy roots, resulting in larger, crisper radishes.
11. Blueberries
Apply coffee grounds around the base of blueberry plants in the spring to help retain moisture, enhance soil fertility, and support healthy fruit production.
12. Strawberries
Strawberries are greedy feeders and benefit from the nutrients and organic matter in coffee grounds. Coffee grounds can also help repel slugs and other bugs that like to munch on your precious strawberry crop.
18 Strawberry Dessert Recipes to Celebrate the Sweetness of Summer
How to Use Coffee Grounds on Houseplants
If you’ve been in the habit of simply disposing of your coffee grounds each morning, you should rethink your approach. Coffee grounds offer an eco-friendly alternative for enhancing your plant’s soil quality and promoting growth. Coffee grounds have nutrients that plants like, so they can improve your soil and act as a natural fertilizer. Here’s how.
How to Use Coffee Grounds on Houseplants
12 Plants to Grow Alongside Your Blueberry Bushes to Keep Them Happy
Planting the right companion plants near blueberry bushes can help to ensure successful fruiting. Here are some plants that you should grow alongside blueberry bushes to help them thrive.
12 Plants to Grow Alongside Your Blueberry Bushes to Keep Them Happy
16 Surprising Household Problems You Can Fix With Vaseline
Vaseline is a versatile and readily accessible household staple with many unexpected uses. Here are 16 ways to use it for household problems.
16 Surprising Household Problems You Can Fix With Vaseline
15 Incredible Ways to Repurpose Used Coffee Grounds
Most people toss out used coffee grounds after making their morning cup of coffee, but what you might not know is that these grounds can actually be useful in many ways. You can repurpose them to do things like composting or cleaning, which can help reduce waste in your home. Here’s how.
