Don’t toss out your moldy coffee grounds just yet – you can use them to fertilize your garden!
Coffee grounds are high in nitrogen, potassium, and magnesium, all of which are essential nutrients for plants.
But can you use the ones with mold growing on them?
In this guide, let’s learn about the moldy coffee grounds and how you can use them for your indoor as well as outdoor plants.
What Are Moldy Coffee Grounds?
Moldy coffee grounds are exactly what they sound like: coffee grounds that have been infected by mold.
This usually happens when you do not store them in a moisture-free environment, such as in an airtight container.
As a result, the grounds can become a breeding ground for mold and other bacteria.
But you don’t have to worry about it, as you will only use these grounds as a natural fertilizer for your plants.
Why Should I Use Moldy Coffee Grounds In The Garden?
Coffee grounds can still be used in the garden despite their moldy state.
In fact, their moldy quality can actually be beneficial, as it helps to release nitrogen into the soil.
This is important for plant growth, as nitrogen is essential for the production of chlorophyll and other essential plant nutrients.
Nitrogen also helps in the overall growth of the plant, so using moldy coffee grounds is a great way to give them a boost.
In addition, coffee grounds also contain other beneficial nutrients, such as potassium and magnesium.
Potassium is good for plant growth, while magnesium helps to improve the overall flavor of fruits and vegetables.
Should You Be Using Moldy Coffee Grounds In The Garden?
I’m sure you may be wondering if it’s safe to use moldy coffee grounds in the garden.
After all, they are full of nutrients that plants love.
The truth is, it depends on the kind of mold that is growing on the coffee grounds.
If the mold is a type that produces mycotoxins, you should not use them in the garden.
Mycotoxins are not beneficial to plants and can make them sick.
However, if the mold is not a mycotoxin producer, you can safely use them in the garden.
So, before you use coffee grounds that have been sitting around for a while, take a look at the mold and make sure it’s not a producer of mycotoxins.
You can also check for the color of the mold, as some molds are black and some are green.
If it’s green or blue colored, you don’t have to worry about anything.
You can surely use those grounds for your plants.
But if you’re not sure, it’s best to err on the side of caution and not use them.
Now, let’s see how you can make use of these moldy grounds in your garden.
How To Use Moldy Coffee Grounds In The Garden
Whether it’s an indoor garden or an outdoor garden, you can use the moldy coffee grounds without any issues.
Use the following step-by-step process to feed coffee grounds to your plants –
- Collect the moldy coffee grounds and place them in a blender.
- Blend the grounds into a fine powder.
- Sprinkle the powder around the base of your plants.
- Water them in well.
These are the only steps you need to follow in this process.
You can also use these grounds directly in the pot, but make sure you give it a rinse before applying to the plants in your garden.
Note: Just add a tablespoon of coffee grounds to the soil of each plant, and mix it in well.
Then, water the plants as usual.
The coffee grounds will help release nutrients into the soil, which will help the plants grow strong over the period.
As a result, they will also fight off any pests attacking the plants.
So, if you have any indoor or outdoor plants that could use a little boost, add some moldy coffee grounds to their soil and see the difference it makes.
What Plants Like Coffee Grounds?
There are quite a few plants that enjoy coffee grounds.
So, here are a couple of lists for you.
List of outdoor plants that like coffee grounds –
Azaleas, Camellias, Roses, Rhododendrons, Vinca, Begonias, Impatiens, Petunias, Salvia, Alyssum, Candytuft, Lobelia, Snapdragons, Stocks, Sweet alyssum.
List of indoor plants that like coffee grounds –
African violet, Anthurium, Asparagus fern, Boston fern, Dieffenbachia, Dracaena, Easter lily cactus, English ivy, Geranium, Philodendron, Spider plant.
As you can see, coffee grounds are beneficial for both indoor and outdoor plants.
If you have any grounds lying around, why not put them to good use in your garden?
Note: These are not comprehensive lists, and there are many other plants that enjoy coffee grounds.
If you are not sure, please consult with your local garden center for a list of plants that would do well with the use of coffee grounds.
Now, let’s check out the FAQs below.
It usually takes a few days for coffee grounds to mold.
It can vary depending on the temperature and humidity levels in your area.
But it’s always a good idea to use freshly used coffee grounds as fertilizer.
You should try to avoid mold growth on your coffee grounds as much as possible.
Yes, you can use coffee grounds even if they are white.
However, if there is any mold on them, make sure it is not a mycotoxin producer.
No, used coffee grounds will not hurt plants.
In fact, they are a great source of nutrients for them.
No, there is no real benefit of adding too many coffee grounds to compost.
In fact, it’s better to add just a few tablespoons per batch of compost.
If you add more coffee grounds, it will make the soil acidic and can harm the plants.
White mold is a type of mold that can produce mycotoxins.
However, if the coffee grounds are only lightly covered in white mold, it’s still safe to use them in the garden.
Over To You
Have you tried using moldy coffee grounds in your garden?
It’s a great way to add nitrogen and organic matter to the soil, and it’s free!
In general, coffee grounds are a great natural fertilizer, and their moldy quality can be beneficial for the plants.
Please share this post with your friends and family and see how they like using coffee grounds in their own gardens.
If you have any queries, don’t hesitate to leave a comment below.
I will get back to you as soon as possible.