Are Coffee And Tea Grounds Good For The Garden

Coffee and tea grounds are a popular organic material used in gardening for their ability to improve soil health and provide nutrients to plants. Our post on Are Coffee and Tea Grounds Good for the Garden covers the benefits of using these grounds in your garden, including their ability to add nitrogen to the soil and deter pests.

For more information on organic gardening, check out our article on Are Coffee Grounds Good for Garden Explained.

Using coffee and tea grounds can be an eco-friendly and cost-effective way to fertilize and amend soil in your garden.
Coffee and tea grounds can also help repel pests and improve soil health.
It’s important to use coffee and tea grounds in moderation and mix them with other compost materials to prevent pest attraction and nutrient imbalance.
Acid-loving plants like azaleas and blueberries can benefit from the use of coffee and tea grounds, but other plants may be more sensitive.
Reusing coffee and tea grounds is a creative and sustainable way to reduce waste and support a healthy garden.

Add some extra nutrients to your garden soil and keep pests at bay with the help of coffee and tea grounds.

Are Coffee Grounds And Tea Leaves Good For Plants?

Coffee beans, the primary ingredient in your morning cup of java, is rich in nitrogen. The nitrogen in coffee grounds can be beneficial to plants when added to the soil. 

However, if you’re growing flowers or vegetables that like acidic soil (such as blueberries), adding coffee grounds to your garden may not be a good idea because of their acidic nature.

Once used, tea leaves can also be added to your garden as fertilizer. Tea leaves contain potassium and other nutrients that help balance out over-fertilized soils while improving plant growth by providing micronutrients and trace elements like iron and manganese. 

If you want to use tea leaves for this purpose, make sure they’ve been allowed to dry out before adding them so they don’t molder or burn plants when watered into the ground!

Tea bags often contain cornstarch or dried flowers good for humans but not necessarily for plants!

TEA WASTE FERTILIZER: Used Tea Bags Coffee Grounds

Are Coffee Grounds Acidic?

Coffee grounds are acidic, so they’re effective in helping plants grow. The acidity of the grounds also makes them useful for composting and fertilizer. 

You can use these grounds to kill weeds if you bury them in your garden or spread the grounds on top of an area where you want to eliminate weeds (the acid causes the seeds to not germinate).

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Do Tea Bags Help Plants Grow?

Tea bags are good for your garden because they can be used as a liquid fertilizer. They have the same ingredients as other fertilizers that you can buy at the store, but tea has a lot more nitrogen in it than other fertilizers. 

This means that if you use tea bags to make liquid fertilizer, your plants will grow faster and stronger than using something else.

You can also use your used teabags to make compost teas. This is a mixture of soil, water and teabags (or other organic materials) that helps plants grow faster by improving their nutrition so they put out more flowers and vegetables with fewer pests or diseases on them!

What Plants Like Coffee Grounds And Egg Shells?

Coffee grounds are acidic, which means they’re good for acid-loving plants like azaleas and rhododendrons. 

Egg shells are alkaline, so they’re great for alkaline-loving plants such as blueberries and hydrangeas. They also contain plenty of calcium that helps your plants grow strong and healthy.

“Fertilizing potted plants can be tricky, as too much or too little can harm their growth. Our article on how often to fertilize potted plants provides insights on the best fertilizers, schedules, and amounts to use for healthy plants.”

Can You Put Coffee Grounds In A Worm Farm?

Yes, you can put coffee grounds in a worm farm. Coffee grounds are a good source of nitrogen. They are best placed in the bottom of the worm farm because they will be broken down by worms and other microbes over time and then turned into compost for your garden to use.

You should not put them in the top of your worm farm though, because eggs (and other organic matter) could get stuck on top of these grounds and attract pests like flies or ants.

What Does Coffee Do To Plants?

Coffee grounds can be used as a natural fertilizer in your garden and they help by providing plants with the nutrients they need to grow. Coffee grounds have an acidic pH of 5.8, which is beneficial for many plants including:

  • Tomatoes
  • Peppers
  • Lettuce

However, some plants such as blueberries and azaleas prefer a slightly more alkaline soil (between 6 and 7). The acidity of coffee grounds also makes them useful for controlling pests, especially slugs and snails. 

These pests are attracted to similar pH levels as their environment so they will eat your plants when they find one that’s similar to where they live naturally; 

However, if you throw some coffee grounds around your houseplants then it could help deter them from eating them because of how different it tastes!

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How Do You Make Organic Fertilizer From Coffee Grounds?

If you’re interested in using coffee grounds for fertilizer, here’s what you need to know.

  • Coffee grounds are high in nitrogen, potassium, magnesium and phosphorus.
  • Coffee grounds also have a high calcium content which helps plants grow strong roots.
  • Sulfur is another nutrient that helps plant growth but it’s usually only found in trace amounts at best in other fertilizers.

Will Coffee Grounds Kill A Plant?

Coffee grounds are not toxic to plants. They’re also not acidic and have no effect on soil pH, so you can use them without fear of damaging your garden or the environment.

But don’t get us wrong: coffee grounds are still bad for the garden because most people just dump them there instead of composting them. If you want to use coffee grounds as fertilizer, here’s how:

  • Mix it with other compostable materials like pine needles or shredded leaves before applying it to your plants;
  • Water thoroughly after applying the mixture;

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Does Putting Coffee Grounds In Pots Keep Cats Away?

No. Cats are attracted to the smell of coffee, but they’re also attracted to the smell of catnip and other plants that they can eat. 

So while your neighbor’s little furball might be repelled by the presence of coffee grounds in your pot, he’ll probably just move on to another place nearby with no such deterrents.

Why don’t you want your cat eating your plants? The ASPCA warns that ingested fertilizers can lead to gastrointestinal upset for cats and dogs; 

It’s not recommended for them to eat soil from potted plants at all because there may be toxic chemicals present that aren’t harmful when used on soil (for example, snail bait).


So, in summary, the answer to our question is “yes”: coffee and tea grounds are good for plants. They can be used as fertilizer for your garden or houseplants, but you should always check with a specialist before you start using them on any plant that can be toxic to humans or animals. 

It’s also important to remember that some plants (including eggshells) can make the soil too acidic if used in large quantities over time.

“Coffee grounds are a popular and eco-friendly way to boost your garden’s soil health, but are they actually good for your plants? Our article on are coffee grounds good for the garden offers insights and tips on how to use coffee grounds effectively as a fertilizer and soil conditioner.”

Further Reading

Your Garden Loves Coffee as Much as You Do: This blog post explains how coffee grounds can be used as a fertilizer and pest repellent in your garden.

Uses for Leftover Coffee Grounds and Tea Leaves: This article provides creative ideas for using leftover coffee grounds and tea leaves, including in gardening and composting.

The Best Ways to Reuse Coffee Grounds and Tea Leaves: This guide offers tips on how to reuse coffee grounds and tea leaves in an eco-friendly manner, including in gardening and household cleaning.


Can coffee and tea grounds be used as a fertilizer for plants?

Yes, coffee and tea grounds are rich in nutrients like nitrogen and can be used as a natural fertilizer for plants. They can help improve soil health and promote healthy plant growth.

How should coffee and tea grounds be used in gardening?

Coffee and tea grounds can be used in gardening as a fertilizer, soil amendment, or pest repellent. They should be used in moderation, mixed with other compost materials, and applied around the base of plants.

Can coffee and tea grounds attract pests in the garden?

If used in excess, coffee and tea grounds can attract pests like ants and flies. To prevent this, it’s best to use them in moderation and mix them with other compost materials.

Are coffee and tea grounds safe for all types of plants?

Coffee and tea grounds are safe for most types of plants, but some may be more sensitive than others. It’s best to use them on acid-loving plants like azaleas and blueberries, and avoid using them on plants that prefer alkaline soil.

How often should coffee and tea grounds be used in gardening?

Coffee and tea grounds should be used in moderation, about once a month or as needed. Overuse can harm plant growth and attract pests, so it’s important to balance the use of coffee and tea grounds with other compost materials.