Are Coffee Grounds Good For Pansies? (Read This Before Use)

Pansies are beautiful flowering plants that can add beauty to your garden. They can survive both warm and cold climates provided they get some care. Many gardeners add coffee grounds to the soil to boost the growth of these plants. But should you do that with your pansies? Are coffee grounds good for pansies? Let’s find out.

Coffee grounds contain a good amount of nitrogen that helps in boosting the growth of the pansies. Thus, these can be used in the pansy soil bed to maintain the soil’s acidity and increase its growth. However, excess use of coffee grounds can damage the roots and wilt your pansy plant.

Pansies do not enjoy excess nitrogen. High rates of nitrogen can make the plant weak.

Excess of nitrogen can harm your pansies and affect their growth; they can start growing extremely tall and might start to fall or can even make the pansy leaves pale and yellow. Coffee can also increase the acidity level of the soil excessively and result in stunted growth.

So you can mix coffee grounds with the soil while preparing the soil mix for pansies. Or, you can use coffee as a liquid fertilizer for your pansies.

Whichever way you use them, remember only to use as much as needed for your pansies. Coffee grounds can be used when the acidity of the soil bed is less than required.

Today’s article will discuss the result of using coffee grounds, how often you can use them, and the different ways of using coffee grounds in pansy soil beds. Along with that, we will also discuss the effects of excessive use of coffee grounds.

Pansy 14

Are coffee grounds good for pansies?

Coffee grounds work well for plants that can grow in acidic soil. Pansies can grow in acidic soil, but too much coffee will not be suitable for pansies as it might increase the acid level of the soil. Pansies enjoy growing in pH levels 5.4 to 5.8.

An excess of nitrogen can make these plants grow taller than expected. They might fall or start breaking due to the excess growth.

Because pansies need a pH level of 5.4-5.8, you need to check the soil’s acidity before adding coffee grounds to the soil bed. If you add more coffee in the soil that is already acidic, that might harm your pansies. So, you must check the soil before applying the coffee grounds.

The pH level of coffee ranges from 4.85-5.10. They are highly acidic. But the pH level of grounded coffee varies between 6.5-6.8, which is close to neutral. So, you can see the difference.

The acid is not in the grounds but the coffee. So, never use beans. Always go for the grounded coffee. And check twice before applying them in the soil bed.

How often should I use coffee grounds on my pansies?

Using coffee grounds in the garden has become a popular idea because of its growth-boosting abilities. They are high in nitrogen that help promote the plant’s growth, increase their metabolism, and help in cellular growth. You can use them as fertilizers for better growth of the pansies.

But, despite its advantages, there are limitations. A high source of nitrogen will cause harm to your pansies.

The fertilizer requirement of pansies is a bit different from other seasonal plants. You must avoid using slow-release fertilizers that are high in ammonia nitrogen. This will be good for the annual summer pansies but not for the autumn plants.

Do not add too much coffee at once because that might make the soil bed more acidic than your pansies can handle, resulting in stunted growth and no flowers.

Different ways to use coffee grounds for pansies


Adding coffee grounds to the pansies soil bed is one of the easiest and cheap ways to improve the soil quality and give power to your plants.

Along with nitrogen, coffee grounds even help provide organic materials to the soil that promotes healthy growth. It supports the healthy growth of pansy flowers. It even encourages the development of the soil structure.

Adding coffee grounds to your pansy soil can help your plant absorb essential nutrients, promoting good drainage, moisture preservation, and ventilation.

There are ways of applying coffee to the soil for better growth of pansies. If you mix them with some water, that might lessen the acidity of the soil, which might work best for the pansy soil.

Let us read how we can apply coffee grounds to the soil.

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In the planting holes and soil bed

You can add a little bit of coffee powder into the holes. That will give a boost to the pansies.

Along with that, it will also help improve the soil structure. It will also promote proper drainage for the pansies and provide enough air channels for water and the essential nutrients.

You can even add coffee grounds to the soil as slow-release fertilizers. Water your plant well.

Watering will make the nutrients flow into the soil. This will help to protect your pansies from pest infestation. This will work well with the annual pansies.

For perennial pansies, you can add coffee to the soil while planting the pansies. This will add nutrients to the soil and develop a good structure for the perennials’ healthy and long-term growth.

Using in the compost pile

In winter, using coffee grounds in the compost pile is a good option. Sprinkle little coffee ground on the soil and cover them well with compost or mulch.

Worms will get attracted to the coffee and speed up the process of compost. This will help to grow your pansies faster.

Make sure you don’t add too much coffee to the compost pile. Excess coffee increases the acidity of the soil and, later on, will harm the growth of your pansies.

While making the compost, you must keep certain things in mind:

  • Use materials like dried leaves, flowers, and barks so that the acidic level remains in limit.
  • Make the compost light.
  • Keep an eye on the watering schedule, as compost can hold too much water, leading to overwatering problems, and you will not want that you happen.

Using as a liquid fertilizer

You can use coffee grounds as a liquid fertilizer. This is a good option for growing your pansies fast and keeping them healthy.

This will also help lower the nitrogen level, so the acid level of the soil will not increase too much. To maintain the acidity of your pansy soil bed, pour a coffee solution.

Before making the fertilizer, you need to know about the quantity of coffee, as too much coffee might increase the acidity in the soil, and the high nitrogen content might damage your pansies. 

To make a liquid fertilizer out of the coffee grounds:

  1. Take two cups of coffee grounds and add them to a five-gallon bucket of water.
  2. Let the coffee sit down properly.
  3. Keep it aside for some days.

After that, you can use this liquid as fertilizer for your pansies.

You can also mix half a cup of coffee grounds into a spray bottle, mix well with the water, and spray them as fertilizer for pansies.

Check the quality of your pansies regularly. If you find any improvements after using coffee grounds, then continue to use them as per schedule.

But, at any time, if you find anything wrong with your pansies, you must stop using them. If you do not stop, the coffee fertilizer might affect your plant and even damage it.

Check the pH level of the soil using a testing probe. The addition of coffee might increase the pH level of your soil.

An increase in nitrogen content too will affect the health of your pansies. Checking the soil will let you know whether you added more coffee or the right amount of coffee. 

Adverse effects of using coffee in pansies

coffee composr

Though coffee is an excellent fertilizer for the better growth of pansies, there are some harmful effects of using coffee in pansies.

Excess use of coffee grounds will increase the soil’s acidity level; it will produce excessive nitrogen to the plants. This will cause harm to the pansies.

If your pansy is receiving excess nitrogen due to the use of coffee, it will show signs of it.

If you are confused about the fertilizing schedule of pansies, you might need to check the soil’s pH level. Check it using a testing probe. 

You must check your soil’s acidity once or twice every year. This will help you know whether your care is going well or not.

You must also observe the development of the plant.

There are some ways with which you can understand that whether you are using the right amount of coffee grounds for your pansies or not:

Stunted growth

If the soil’s acidity becomes too high, the pansies will not grow well. They will have stunted, and they will not grow any flowers.

So, you need to check the soil before and after the application of coffee grounds to understand this.

High acidity in pansy soil means the pH level has dropped below 5.4. To fix this problem, you can add Epsom salt to the soil and increase the soil’s pH level.

To increase the pH level, you can mix one tablespoon of Epsom salt with one gallon of water and add it to the soil bed. This will help reduce the acidity of the soil.

Leggy pansies

Nitrogen in the coffee ground can help in the healthy and fast growth of your pansies. But, pansies do not enjoy excess nitrogen.

Excess nitrogen will boost the growth so much that the plants will start growing leggy. Leggy growth might have a chance of breaking down the tree from the middle.

Use coffee in a limited amount. Less nitrogen will not cause too much harm, but excess nitrogen can damage these plants.

Stretchy stems

This is another problem caused due to a high amount of nitrogen in pansies. The high amount of ammonia makes the stems of the pansies stretchy.

The stems become juicy and moist during the warm weather. This makes the plants weaker and prone to injury.

Moisture retention

Adding coffee to the soil increases moisture retention. But you should not add too much coffee as that might increase the water preservation, resulting in an overwatering problem. 

Overwatering problems will further invite other problems like yellowing of the leaves, pest infestation, and fungal infections.

Fixing the acidity of the soil

Coffee helps to boost the growth of pansies due to the presence of nitrogen in them. It might also increase the acidity of the soil and fixes the problem of low acid levels.

But, what to do if you apply excessive coffee and increase the acid level of your pansy soil more than it favors?

High acid means the pH level has dropped below 5.4, and this causes a deficiency of magnesium.

To fix the high acid level of the soil bed, you can add Epsom salt in the soil. Epsom salt contains magnesium sulfate. Adding this salt will adjust the acidity level of the pansy soil bed.

Final words

It would be best if you refrain from using coffee grounds if you notice damage in your pansies. You need to observe the condition of your pansies regularly after applying coffee grounds to the pansy soil bed.

Do not use too much coffee as that might increase the nitrogen level and harm your plant. Mix them with compost or water and then use. If you are using them as slow-release fertilizers in the soil, make sure you water them very well, or they might attract pests.

You can use left-over coffee grounds also but water the soil bed before that so that the coffee doesn’t cause any damage. However, it is best to use coffee grounds as liquid fertilizer or compost for your pansies.

Check the acid level of the soil after applying coffee, as coffee increases the acid level. If the acid level is high, fix the problem immediately.

Along with these, take good care of your pansies. Give them all their essentials, water, air, sunlight, and fertilizers, for good flower growth and healthy plant. 

Ref: The University of Arkansas, BritannicaUtah State UniversityWikipediaThe University of GeorgiaThe Pennsylvania State UniversityThe Royal Horticultural Society.


Hello everyone, My name is Richa and I am here to make you a better gardener by creating an in-depth and helpful resource for all the fellow gardeners out there. If I could help even a few people understand their plants better then I call it a success for my efforts.

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