Do you consider growing or repoting a peperomia? Are you wondering if acidic soil is suitable for this plant?
Peperomia is not selective about soil acidity. It prefers slightly acidic or alkaline soil. But heavily acidic soils are not the best choice for this plant. In fact, low-pH soil will attract bacteria to the plant and make it grow slower than usual.
In this article, we will go over the advantages and drawbacks of growing peperomia in acidic soil and how to choose the best soil for this plant.
Let’s get started!

Does Peperomia like Acidic Soil?
Peperomias do not like acidic soils. They prefer soils that are slightly on the alkaline side, with a pH of 6-6.5. However, they thrive in near-neutral soils with a pH of 6.5-7.5.
The low soil pH reduces the ability of the plant to absorb nutrients and water from the soil. In fact, when the pH is low, the soil goes through what is called nutrient leaching.
Nutrient leaching is the process through which minerals such as magnesium, phosphorus, and calcium leach out of the soil, making it harder for roots to grow and absorb nutrients.
When the soil can no longer offer nutrients to the plant, it will suffer from slow growth, brown spots on the leaves, and leaf tip burn.
Acidic soil can also deprive peperomia of the benefits of beneficial bacteria like rhizobia. This bacteria is essential for providing plants with nitrogen, a vital nutrient involved in the creation of amino acids, proteins, and nucleic acids, which are all critical in cellular growth.
The plant will suffer from iron, manganese, boron, and zinc if the pH is too high. This will cause the leaves to become stunted or wilted and develop brown spots. Additionally, alkaline soil can also cause plants’ stems to curl.
One important thing that you should consider about soil acidity is the tendency of the soil to become acidic, even if it was neutral in the beginning. In fact, many factors contribute to the increase of soil acidity over time. The most common ones are the application of chemical fertilizers and the drop of organic matter in the soil.
The best way to keep peperomia soil neutral or slightly acidic is by using natural fertilizers and good-quality peat. There are many different types of peat available, and it is essential to try a few before you decide on the one you feel comfortable with.
Good quality peat will help retain water, retain nutrients, and prevent the soil from drying out. Peat has many different uses. It can be used as mulch around trees, shrubs, garden beds, flower pots, containers, and hanging baskets.
Finally, we recommend that you measure the pH of your soil using a pH test kit that is calibrated for soil testing. To perform this test, mix some of your compost with water and pour it into the testing solution in the test kit. This will help you see how acidic or alkaline your soil is.
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What Kind of Soil Does Peperomia Need?
Peperomias need slightly acidic soil (pH of 5.5-6.0) that offers good drainage and aeration for the roots. Additionally, soil rich in Nitrogen, Phosphor, and Potassium will be highly beneficial for this plant.
Peperomia plants like well-draining soil because lack of drainage causes the roots to become waterlogged. This will make the plant susceptible to root rot and other diseases, which will hurt the growth and beauty of the plant.
If you grow peperomia in compacted or heavy soil, water can travel around the roots rather than down into the plant’s cells. This leaves the roots feeling starved and unable to absorb nutrients.
Additionally, heavy soil will make the roots too tightly packed together. This can prevent them from getting the oxygen and nutrients they need. Therefore, this can impact your plant’s health and growth rate.
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What Is the Best Soil Mix for Peperomia?
The best soil mix for peperomia combines nutrients, soil-building materials, and aeration materials. Perlite is the best material that you can use to improve aeration and drainage. For soil building, you can use coconut or peat moss. Finally, worm casting is the best nutrient component to add to peperomia’s soil.
The combination above will provide the necessary requirements for this plant to thrive. Here are the ratios required for growing a healthy peperomia:
- Perlite: 40%
- Coconut or Peat Moss: 50%
- Worm Casting: 10%
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How to Prepare Peperomia Soil Mix Step by Step?

To prepare your peperomia soil mix you will need the following tools and ingredients:
Tools needed to prepare peperomia mix | Ingredients needed for peperomia mix |
Measuring cups Mixing bowl Spoon | Perlite Coconut or Peat Moss Worm Casting |
Mix 50% peat moss with 40% perlite and 10% worm castings in the mixing bowl using a measuring cup. You can use your hands to mix it up, or you can use a spoon. Make sure the mixture is evenly distributed. Once you are satisfied with the mix, pour the soil mix into your pot and gently press it down with your hands before planting your peperomia in it.
That’s it! Your soil mix is ready for use now. All you have to do is plant your peperomia and water it.
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How Do I Know That I Am Growing Peperomia in the Wrong Soil?
If you grow your peperomia in the wrong soil, the plant will give you multiple signs of struggling with it. One indication that your peperomia is not happy with the soil is yellow leaves. This indicates that the soil does not drain well. Another sign of inappropriate soil for peperomia is wilting leaves. This shows that the soil does not retain moisture correctly. Finally, if you smell an unusual odor from your peperomia, then the soil is causing severe root rot for that plant.
When your peperomia’s soil becomes inappropriate, you should immediately remove the entire plant from the pot and rinse the roots until you get rid of all the dirt.
If you’re removing your peperomia from the soil, ensure you don’t pull it out of its roots. This may damage them and reduce the plant’s ability to grow. Use a soft brush to gently work the soil around the roots. If the soil is hard and compacted, you may need to loosen it up before moving the plant.
Once you’ve removed your peperomia from the defective soil, wash the roots and let them dry before transplanting the plant in a new soil mix.
Does Peperomia Like Acidic Soil? Click here to find the answer