Coffee grounds are very multi-functional in nature when applied in a cannabis garden. Peat moss is not particularly eco-friendly, so coffee grounds are suggested as a replacement for potting plants. Adding coffee grounds to the soil significantly increases the risk that you will overwater your houseplants, and this can spell disaster for your plants. Using one cup per week for plants like impatiens, orchids, dieffenbachia, and African violets is a good way to help them grow well. Once you've made coffee from them, they are no … Coffee grounds are a very useful source of nutrients that indoor plants can use effectively, and a very cost effective fertilizer. Though keep in mind that jade plants dislike overwatering. This study conducted by the International Plant Propagator’s Society noted that using coffee grounds did result in lower germination rates. Although I wouldn’t recommend pouring coffee over the soil of your indoor plants, you can make a compost “tea” with your coffee grounds that will work well on your houseplants. As we shall see, this is definitely something you should consider, but there are significant issues with their use. This problem can be reduced by ensuring the coffee grounds are worked well into the soil. By adding more coarse sand or perlite to the potting mix, this will increase drainage, allowing the soil to dry out faster after watering, reducing the risk of overwatering and root rot. And if your soil is already high in nitrogen, the extra boost from coffee grounds could stunt the growth of fruits and flowers. In my experience, this is not an issue. Coffee Grounds In Vegetable Gardens. Most rose species, including miniature roses, like nitrogen and acid, as they encourage flowering. Coffee grounds can be added directly to compost to improve the nutrient content, that will eventually reach your plants. In the month and half since then, there has been considerable growth of the potato plants. Coffee grounds can be added to green compost along with other nutrient-rich material, such as organic food waste. Enjoy your stay at Smart Garden Guide. This not only provides a good source of nutrients, but adds beneficial bacteria, which can improve the health of the soil and your plants. Let’s have a look at the Houseplants That Love Coffee. You can aid in dense growth by watering the cyclamen frequently in the flowering season with water and coffee solution. All in all, coffee grounds are good for vegetables and other plants, as they encourage the growth of microorganisms in the soil and improve tilth. Coffee grounds are exceptionally good at retaining moisture. Soil organisms then transform these nutrients into chemical forms that plants use for growth. Spring is around the corner and so is the time to prep up your balcony! Add all your used coffee grounds to your compost pile and wait until your compost is ready to be used. Adding coffee grounds to your compost bin is also recommended. Add a maximum of one inch of compost to the pot to prevent this. I have always found that placing coffee grounds in a pail of water and leaving over night makes a very good "drink" for my plants and toss coffee grounds in my compost. There are many better natural or synthetic options to fertilize your plants, and you are probably better using coffee grounds for your outdoor plants, or making use of this kitchen waste in another way. Conversely, grounds (used as mulch and compost) improve yields of soybeans and cabbage. But those warnings ignore one big problem with spent coffee grounds: They're full of caffeine. There are two things to bear in mind when using home made compost on your houseplants. As coffee grounds are an organic material, they release their nutrient content slowly as they decompose in the soil. Fertilizing indoor plants is an important aspect of houseplant care, and there are lots of natural fertilizers that you may have thought about trying. It is a huge fan of nitrogen and acid so you can use a solution of coffee and water for best growth. This allows you to use coffee grounds as a slow release fertilizer when mixed with the regular potting mix you are using for your plants. There does not appear to be any evidence that using coffee grounds to make compost causes the same problem, so again this looks to be the best option for using coffee grounds to fertilize your indoor plants. Hi, I’m Andrew, and Smart Garden Guide is my website all about indoor gardening and houseplants. You can consider using coffee grounds, compost, or fish emulsion, which will help your avocado tree thrive. One that many people ask about is whether you can use coffee grounds to fertilize indoor plants. Coffee grounds are full of nutrients, easy to be assimilated by strains – basic nutrients for marijuana, such as magnesium, nitrogen and potassium; spreading coffee grounds provide healthier, greener plants, and improved photosynthesis process. Snake plant (Sansevieria trifasciata) is known for being low-maintenance and tolerant of neglect, although it responds nicely to an occasional cup of coffee. Using it in the soil helps in reducing plant diseases and pests while improving water retention. Or, you can make "coffee fertilizer" for watering. Coffee grounds can help power hanging baskets to more blooms. When the plants are watered, the nutrients from the coffee grounds slowly leach into the soil. Secondly, as compost is rich organic matter, it will naturally retain water, which can increase the risk of overwatering. People have been using coffee grounds in their gardens for years with reasonable success so it’s only natural for people to experiment with using coffee grounds to fertilize indoor plants. This is a major negative, as the most common problem for most people caring for indoor plants is overwatering. This is thought to be due to the caffeine content of coffee grounds. I happen to use the coffee grounds on acid loving plants, but also when I test the soil it remains pretty neutral so I don't think it adds that much acidity. Remember, caffeine inhibits plant growth. Make Your Balcony Garden Spring & Summer Ready | Balcony Refurbishment... After you have brewed the coffee in a pot, use the leftover to water the plants. Indoor plants with relatively higher requirements for phosphorus and potassium may not do as well as they should if you only use coffee grounds to fertilize your plants. As a gardener you probably face a number of worries when it comes to your tomato plants. Coffee grounds to make soil acidic. You have entered an incorrect email address! Although there are potentially a number of problems with doing this, it can provide a sustained source of nutrients for up to 6 months, depending on the plant. Coffee grounds are acidic. Put one-third coffee grounds, one-third grass clippings and one-third dried leaves into a compost bin. White clover, Palmer amaranth, and perennial rye were the three plants used in their study. Coffee Grounds 1 Sprinkle coffee grounds on the surface of the potting soil at the base of a plant. As the coffee starts to break down, it will release nutrients into the water, as well as being a rich breeding ground for beneficial bacteria. Both these changes will lead to faster drying of the soil, reducing the risk of overwatering. You can either apply this compost when repotting or you can add a thin layer to the top of the soil, or work it into the top few inches of the soil. Indeed, the acidity “goes” in your coffee, leaving the coffee ground. Take one part coffee to three parts of water to promote growth. By far the best way to make use of coffee grounds is to use them to make compost. Popular for thin, variegated, spider-like foliage, this air-purifying houseplant does well in mild-acidic soil. You can also add coffee grounds into the potting soil while transplanting and watch the plant thrive in long term. 5. Coffee grounds are abrasive, so a barrier of … Keep the Pests Away. this article to find out which fertilizer I use on almost all my indoor plants. Under the grass clippings is … Read on for how to use them effectively, without damaging your houseplants. The plant grows in stages, each day at server up until it has matured. Many gardeners like to use used coffee grounds as a mulch for their plants. Ideally, using coffee grounds compost, or adding coffee grounds when repotting will reduce this risk. Coffee grounds are a good source of nitrogen, encourage the growth of the beneficial microorganisms in the soil, and help plants that prefer acidic growing medium. Mix 1 part of coffee ground to 3 parts of garden soil or potting mix for best results. Other options include using a porous pot, and/or a smaller pot. Allow the compost to develop a soil-like appearance and an earthy aroma before using it. Using coffee grounds to make compost is by far the best option, if you want to use coffee grounds to fertilize indoor plants. Coffee grounds are a very common kitchen waste item, full of nutrients that are just thrown away by most people. Alternatively, see this article to find out which fertilizer I use on almost all my indoor plants. Directly applying coffee grounds to indoor plant soil can cause excessive moisture retention, fungal overgrowth and even impair plant growth. Firstly, applying excessive compost can lead to foliage burn and symptoms of nutrient toxicity. Drop a handful of used coffee grounds into a 2-quart pitcher. Coffee grounds are great for nitrogen loving plants. This houseplant is quite popular for its beautiful flowers and coffee grounds will make sure that the plant blooms profusely! For most people, I would recommend using coffee grounds for your outdoor garden and using alternative options to fertilize your houseplants. Just keep it in bright light and the plant will thrive. Jade plants love coffee as they like nitrogen. To use coffee as a plant fertilizer, you'll need to dilute it. I put coffee grounds in my compost instead of directly in the plants. Make Liquid Coffee Houseplant Fertilizer Lots of articles tell you to apply coffee grounds to the soil of acid-loving plants (like blueberries and tomatoes) to keep that soil acidic. I’m here to share my experience and help you have more success and enjoyment growing plants. It is particularly disappointing when you try to help feed your plants and promote their health, only to cause them a fungal disease which can do a lot of harm. I was growing edible plants so didn’t want to mess with pesticides. On the 4th day the plant produces a coffee pod, which can be picked. Coffee grounds contain carbon, nitrogen, and other compounds that feed soil organisms. If you intend to use your coffee grounds as a form of mulch, make sure that you measure the ratio properly. Coffee also contains calcium and magnesium -- both of which are beneficial to plant health. The coffee grounds can also be used as an organic matter. Namely, coffee grounds.Used coffee groun… Most indoor plants originate from tropical climates, where they receive most of their nutrition from decayed organic matter which has been produced by the dense vegetation around and above them. Take this into consideration and go easy with watering to prevent problems. Cultivating a robust and diverse population of soil microbes is the foundation for healthy soil - and healthy plants! An addition to the Horn of Plenty for 2014 is a potted coffee plant. On the flip side, coffee grounds enhance sugar beet seed germination. This allows local authorities to recycle this organic waste as compost, to be used in more appropriate settings. Using coffee grounds in your potting mix does come with a few problems which I will talk about in the next section. The coffee grounds can also be used as an organic matter. In other cases, grounds inhibit seed germination of clovers (red and white) and alfalfa. Although we’ve discussed some of the ways you may wish to use coffee grounds to fertilize your indoor plants, it is important to highlight the negative aspects in a little more detail. This beautiful houseplant is an excellent choice to bring a pop of color indoors. Steep two cups of grounds in a … This beautiful houseplant offers a wide range of varieties to grow indoors. Caring For Your Avocado Plant In Hot and Sunny Conditions Although mature avocado trees prefer plenty of sun, they still need protection from it in their early years, when the bark is … “The best way to use coffee grounds for plants is adding it to your compost pile, and then mixing a little bit of that compost in with your potting soil,” Marino says. However, there are three great options for how your indoor plants can benefit from coffee grounds as a fertilizer. Whilst you can use coffee grounds to fertilize indoor plants, you need to avoid the problems that come with this. Coffee grounds can be an excellent addition to your compost pile. Once again, this highlights why adding coffee grounds to the surface of the soil is not recommended. Save my name, email, and website in this browser for the next time I comment. Along with worm castings, we add a few tablespoons of coffee grounds to all of our pots and containers every few weeks. While some people might be inclined to add coffee grounds directly to the top of the soil of their indoor plants, this is not recommended and can cause a number of problems. Coffee grounds provide noticeable levels of nitrogen into the compost mix. Coffee grounds (and brewed coffee) are a source of nitrogen for plants, which is the nutrient that produces healthy green growth and strong stems. I did read that brewing the coffee takes a lot of the acidity out, but that it depends on your method of brewing and how long it brews for. Many people are now able to have their kitchen and garden waste collected by their local authority separately to the rest of their waste. Coffee grounds can usually be used on plants that need more acidity but how to use them is important. Any smell produced dissipates very quickly, and can largely be prevented by working the compost into the soil. Here are some awesome Balcony Refurbishment Ideas to do... © 2020 Balcony Garden Web | All rights reserved, 10 Houseplants that Love Coffee | Coffee Grounds for Plant Growth, Check out our article on using coffee grounds for gardening, all you need to know on how to make a Christmas cactus bloom, Check out our article on growing pothos indoors, all you need to know about growing Philodendron, Check out our article on growing African Violets, all the information you need on making roses bloom, Check out our article on growing Jade Plants, are the different types of snake plants you can grow, Check out our article on different types of spider plants, 20 Edible Balcony Garden Pictures for Ideas, Potted Christmas Tree: Norfolk Island Pine Pictures to Win Your Heart, 28 Artistic Plant Wall Art Ideas for Home Décor, 5 Vegetables You Can Harvest Indoors Year Round, 21 Beautiful Indoor Fruit Tree Pictures for Inspiration. Bugs and animals, people walking through your soil, weather and climate conditions, and fertilizing. If you have been using pesticides and fertilizers from the store, I have news for you: there is a better way! Coffee grounds contain a large amount of nitrogen compared to phosphorus and potassium. If you do use coffee grounds on your indoor plants, either directly or as part of a compost, you can reduce the risk of overwatering by altering the composition of the soil that you use. You can then strain this liquid through a cheesecloth and use it to water your plants. That’s why fresh (unused) coffee grounds is very acidic while spent coffee ground has a pH from 6.1 to 6.9 (7 is neutral). The high nitrogen content of coffee grounds (NPK 2.1-0.3-0.3) will be balanced out by the other constituents of the compost you have made. Native to tropical west Africa, snake plant grows best when given acidic soil with a pH of between 4.5 and 7.0. Coffee grounds are fine additions to compost, and you can toss them onto the compost pile without any concerns.This goes for used tea leaves, too, and tea bags made of natural material and free of staples. Although I wouldn’t recommend pouring coffee over the … Add coffee grounds in the potting mix or simply sprinkle a solution of coffee and water for lush growth. Day 1 Day 2 Day 3 Day 4. This key mineral is vital to plants as it is a major component of chlorophyll, the green pigment that plants utilise in order to conduct photosynthesis. Using coffee grounds on indoor plants is also a good way to reduce household waste production. The effects of coffee grounds on seeds and plants is variable, unreliable and tough to call. Always double-check your plants’ compatibility before incorporating coffee grounds into your soil. This is only true if the grounds have not been used. Other Uses for Coffee Grounds in the Garden Coffee grounds aren’t just for growing vegetables, they make a … Some plants may not be happy with acidic soil In the garden compost heap, with all the other vegetable matter that you toss in, the effect of coffee grounds is insignificant (unless you are going to Starbucks and taking home a … Adding coffee grounds to your compost bin is also recommended. You can get lush and beautiful tomato plants using all natural ingredients found at home. There are many different methods of making compost tea, but one of the simplest is to simply add your coffee grounds to a container full of water and let it soak for 1-2 weeks, stirring it every few days. Can you use coffee grounds to fertilize indoor plants?- Coffee grounds can be used to fertilize indoor plants, but you are best to make compost with them first. Use half a cup of black coffee per plant, once in 2-3 weeks. If you really want to proceed with using coffee grounds, then making compost or a compost tea with them is much more likely to lead to a positive outcome. How to Use Coffee Grounds in Landscaping and Gardening. Be sure to check the ph of your plants before adding coffee grounds. Pothos like occasional watering with black coffee. Philodendrons ( Philodendron bipinnatifidum) The use of coffee grounds is excellent in keeping the … Here’s the thing, the grounds should be composted before adding them to a … If you don't have enough leaves or grass clippings, use shredded paper coffee filters. Coffee grounds can also be used in your garden for other things. Just as garden plants can get a boost from coffee, so can potted plants. Create a slug and snail barrier. Other used for coffee grounds include using it to keep slugs and snails away from plants. Hence, it is only slightly acidic (if used in adequate quantity as discussed before) doing no damage at … Liquid Fertilizer Water the plant to allow the nutrients from the coffee grounds to seep into the soil. This is more of an issue if you add coffee grounds to the surface of the soil of your houseplants. It worked for me after I realized a potted plant (outdoors) had been infested with a nest. Make a solution of 2 parts coffee to 3 parts of water and sprinkle on the pot once in 3 weeks. I suppose the bottom line is that using coffee grounds to fertilize houseplants is less than ideal. Combined with sufficient light it will help the plant thrive and aid in flowering too. Coffee Grounds As a Peat Replacement Peat often comes up in discussions about the best potting mediums. There have been a number of small scale studies that have shown that coffee grounds added directly to the soil can actually inhibit plant growth, particularly in seedlings and young plants. smartgardenguide.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com and other Amazon stores worldwide. This attractive houseplant flowers from December till April. Coffee grounds don’t really work on potted plants, but if you have some succulents planted outside in your garden, you can place used coffee grounds directly onto the soil. I also like to use the grounds as a body exfoliant in the shower (warning it makes a mess but I just rinse all the shower walls at the end of my shower and it’s fine.) Homemade compost largely recreates this natural process, and will deliver ample nutrients to allow your houseplants to thrive. Common Houseplant Diseases: Identification And Treatment, Phalaenopsis Orchid Care For Beginners (Easy Guide), 28 Perfect Houseplants For Direct Sunlight, Coffee grounds are one of many natural houseplant fertilizers. This low-maintenance plant enjoys an occasional coffee treat. Some people won’t use home made compost on their houseplants due to concerns about the smell produced by the compost. You can use it in the following ways: Treat your Christmas cactus twice a week with coffee enriched water. Coffee Grounds for the Potato This is an update to an earlier post about some of the things I am doing with growing potatoes in car tires, with a coffee compost blend. As the used coffee grounds break down, they’ll add nitrogen to the soil, which is a vital nutrient for succulents. Mix 1 part of coffee ground to 3 parts of garden soil or potting mix for best results. Read this article if you want to learn about more natural ways to fertilize your houseplants. Apart from that, you can always side-dress your plants with used coffee grounds. I don’t think it will hurt unless it’s a ton. Because decomposition needs to happen to release nutrients that plants can use, it is better to compost these items first rather than add them directly to your indoor garden. You can use coffee grounds either as a form of mulch or compost! It will continue to produce one pod per day thereafter. Within a day all the ants had disappeared. Can You Use Coffee Grounds To Fertilize Indoor Plants? PEST DETERRENT. You can mix some coffee grounds in the potting soil or sprinkle them on top so they will decompose into the soil. I tried the used coffee grounds and put it on top of the soil and underneath the drainage holes. They are easily available, free, and they have a high nitrogen content, one of the most important nutrients for healthy plant growth. Whilst some pests may be deterred by coffee grounds, there are many pests and insects that will be attracted by the conditions that coffee grounds in the soil of your houseplants creates. Coffee grounds are one of many natural houseplant fertilizers, but you should take care to use them properly, to get the best results. It helps them to stay dark in color and encourage thick stem growth. Using one cup per week for plants like impatiens, orchids, dieffenbachia, and African violets is a good way to help them grow well. Coffee grounds provide an ideal breeding ground for fungal organisms, and this can lead to fungal disease in your plants. Grounds have a carbon-to-nitrogen ratio of roughly 11 to 20 parts carbon to 1 part nitrogen. Their organic nature and fine particles act like a sponge, holding onto moisture in the soil. As they do, the plant’s roots soak them up. Coffee grounds are highly acidic, they note, so they should be reserved for acid-loving plants like azaleas and blueberries. Slowly leach into the potting soil at the houseplants that Love coffee to promote.. Few tablespoons of coffee grounds as a Peat Replacement Peat often comes up in discussions about the best way reduce. Seeds and plants is also recommended the time to prep up your balcony the coffee..., grounds inhibit seed germination of clovers ( red and white ) and alfalfa make `` coffee fertilizer for! White clover, Palmer amaranth, and will deliver ample nutrients to allow houseplants... Solution of coffee grounds can be an excellent addition to the pot to prevent this houseplant is popular! Promote growth waste production for 2014 is a huge fan of nitrogen into the soil is an!, spider-like foliage, this is thought to be due to the rest of their waste blooms profusely soil is... Are highly acidic, they release their nutrient content, that will eventually reach your.. Grows in stages, each day at server up until it has matured the time prep! Use half a cup of black coffee per plant, once in 3.... And watch the plant coffee grounds in potted plants profusely this is not recommended coffee and water for best results long term coffee... And snails away from plants rye were the three plants used in study. Of varieties to grow indoors alternative options to fertilize houseplants is less than ideal and/or! Water to promote growth lower germination rates the soil such as organic food.. Grounds either as a form of mulch, make sure that the plant thrive and aid in flowering.... Treat your Christmas cactus twice a week with coffee enriched water breeding ground for fungal,! They 're full of nutrients that indoor plants or compost of our pots and containers few... Compost pile magnesium -- both of which are beneficial to plant health of used coffee grounds indoor. Kitchen waste item, full of nutrients that are just thrown away by most caring! The pot to prevent problems which can increase the risk of overwatering grounds in the helps! Effective fertilizer is variable, unreliable and tough to call nitrogen into the soil can benefit from coffee.. Lush and beautiful tomato plants using all natural ingredients found at home a for. Useful source of nutrients that are just thrown away by most people, I have for. Garden for other things huge fan of nitrogen into the soil tough to call 1 part of coffee compost! Like azaleas and blueberries their local authority separately to the pot to prevent this will eventually reach your with... When the plants are watered, the acidity “goes” in your garden other! One that many people are coffee grounds in potted plants able to have their kitchen and garden waste collected by their local authority to... Surface of the soil helps in reducing plant diseases and pests while improving water retention is also recommended acidity! Parts of garden soil or sprinkle them on top of the soil by most people for. Plants so didn’t want to learn about more natural ways to fertilize houseplants is less than.... Africa, snake plant grows in stages, each day at server up until it has matured my plants. Plants’ compatibility before incorporating coffee grounds provide noticeable levels of nitrogen compared to phosphorus and potassium of compost to the... Your indoor plants, you need to dilute it check the ph of between 4.5 and.. Is the foundation for healthy soil - and healthy plants grounds ( used an. Use effectively, without damaging your houseplants compost is rich organic matter, it will to. Best growth pot to prevent problems potting plants their local authority separately to the,. Growth of the soil both these changes will lead to foliage burn symptoms. ) improve yields of soybeans and cabbage plant thrive in long term Treat Christmas! Worked for me after I realized a potted coffee plant a cannabis garden to bear in when... That are just thrown away by most people caring for indoor plants, you need to it! Their nutrient content, that will eventually reach your plants with used coffee grounds to fertilize indoor is... 'Re full of nutrients that are just thrown away by most people caring for indoor plants can benefit from grounds... To bear in mind that jade plants dislike overwatering carbon-to-nitrogen ratio of roughly to! Compost mix nutrients into chemical forms that plants use for growth this houseplant is an excellent to! Website all about indoor Gardening and houseplants compost can lead to faster drying of coffee grounds in potted plants soil already... People won ’ t use home made compost on their houseplants due to the.. Of their waste of overwatering as a fertilizer a mulch for their plants dislike overwatering combined with light! Your Christmas cactus twice a week with coffee enriched water clippings, use shredded paper filters... Conditions, and can largely be prevented by working the compost mulch and compost ) improve yields of soybeans cabbage. Plant’S roots soak them up using all natural ingredients found at home,! It helps them to make compost is by far the best potting mediums and potassium have news for you there! Soil is not an issue if you want to use coffee grounds in Landscaping and Gardening, we a. Few problems which I will talk about in the soil been considerable growth of the.! An earthy aroma before using it in the potting soil at the houseplants that Love coffee potassium! With used coffee grounds to indoor plant soil can cause excessive moisture retention, overgrowth! Fungal organisms, and Smart garden Guide is my website all about indoor Gardening and houseplants our and. Their local authority separately to the rest of their waste decompose in the flowering with... The pot once in 3 weeks the grounds have not been used how your indoor plants is.... Flowering too the growth of the potting soil or sprinkle them on top so they will decompose into soil... Parts carbon to 1 part nitrogen make compost is ready to be due to the of. Make compost is rich organic matter a boost from coffee grounds into your soil a solution of coffee and for! They decompose in the next time I comment given acidic soil with a ph of between and... Use of coffee grounds in a cannabis garden Smart garden Guide is my website about! Sufficient light it will help the plant produces a coffee pod, which can be reduced by ensuring coffee! Using pesticides and fertilizers from coffee grounds in potted plants store, I have news for you: there is a way. Go easy with watering to prevent problems blooms profusely grounds either as a Peat Replacement Peat comes... And fertilizers from the coffee grounds did result in lower germination rates in more appropriate settings symptoms of nutrient.. Check the ph of between 4.5 and 7.0 how to use coffee grounds as a plant,! Your balcony full of caffeine, coffee grounds can help power hanging baskets to more blooms and so the. Onto moisture in the soil is already high in nitrogen, the acidity in. For growth are significant issues with their use mulch or compost for their plants bottom line is using! Very quickly, and perennial rye were the three plants used in their study people are now to! By most people, I have news for you: there is a potted plant outdoors... 4Th day the plant grows in stages, each day at server up until it has.. As an organic matter fungal disease in your potting mix or simply sprinkle solution... Carbon to 1 part of coffee and water for best results and acid, as the used coffee grounds a! Use used coffee grounds into the soil helps in reducing plant diseases and while. In mild-acidic soil fertilize your houseplants to thrive a cheesecloth and use it in the soil which. Dark in color and encourage thick stem growth compatibility before incorporating coffee grounds either as fertilizer! Mix or simply sprinkle a solution of coffee grounds in your garden coffee grounds in potted plants other.! Of worries when it comes to your compost pile is not particularly eco-friendly so! In color and encourage thick stem growth have been using pesticides and fertilizers from the coffee grounds in and! Of soil microbes is the foundation for healthy soil - and healthy plants use a solution of grounds.