african violet flower

African Violet Soil Mix: Everything You Need to Know

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Do you know that the health of your African violets reflects their soil condition? It is time to listen to what your plant is telling you. In most cases, yellowing and other plant problems are not caused by a disease or an insect. 

Understanding soil is one of the most important things to learn when it comes to African violet care. Most signs and symptoms show because of the growing medium the plant is grown.

Read on to know the best soil mixture for African violets. 

What is the Best Growing Medium for African Violet 

Since the African violet (Saintpaulia) originated in Africa, it is often seen growing on porous rocks and mossy areas. Given this information, the growing medium should mimic the same characteristics given by the African violet’s natural environment.

To understand what type of mixture would be most suitable, you must know the four key characteristics: aeration, water retention, anchorage, and availability of nutrients. These four are highly affected by the texture of the mix. 

Saintpaulia prefers a growing mix with high porosity and good drainage. This preference is because the plant has a sensitive root that may be damaged by waterlogging. Some growing mixes are already pre-made by different companies to cater to the African violets. But before buying, you must also take into consideration the environment at home. 

Unknown to many, the material you use for your pots affects the growth of your plant. It goes hand in hand with the soil in moisture control. If you are using a clay pot, it is porous, and water can seep through it. This characteristic leads to loss of moisture through evaporation. On the other hand, plastic pots keep it sealed, and there are no pores to fill, but it causes more chances of waterlogging. Each has its pros and cons.

Remember to choose the right one that will suit your plant’s needs. Also, check it with other growing requirements. For example, if you often forget to water your plants, you should opt for a plastic pot to retain moisture longer. 

For example, if your indoor plant corner is humid, pick a mixture rich in organic matter as it will help retain moisture in the soil. If you have an automated irrigation system, more loose and porous soil should be used, an example of which are mixtures with bigger soil particles and rougher textures. Using this type of mixture will avoid waterlogging and give room for gas exchange so the roots can breathe. 

Best Soil Mixture Recipe for African Violets

There are various types of commercial growing mediums designed specifically for African violets. However, you could also opt to create your mixture. The recommended African violet potting soil recipe is as follows: 1 peat moss or leaf mold:1 garden soil:1 sand, perlite, or vermiculite. This mixture will provide the best texture for African violets. If these materials are available, remember to pasteurize the growing mix to be sure that it is disease-free.

What is Soil Pasteurization

There are 3 ways to pasteurize your mixture. The first is by exposing it to the sun for days and mixing it every day. This is advisable if you have an open area with direct sunlight. Also, this is recommended during very hot days. 

The next method is for small amounts of growing media. The moist mixture is put in an oven-safe pan covered in tin foil. Then, put the pan in an oven set in 180 deg Fahrenheit and let it stay there for an hour. 

The last method is called the barbeque method. It is basically like barbecuing your mixture. At 160 degrees Fahrenheit let the mixture cook for 30 minutes. Let the mixture rest for at least 4 days and remember to mix it every day to provide aeration. Also, remember to not let the temperature reach more than 180 degrees Fahrenheit. With that heat, the beneficial soil bacteria would be killed and that is not what we are going for. 

Best Soilless Growing Mixture for African Violets

Moreover, some people do not prefer using a growing mixture with soil. This reason is why they go for a soilless mix. The Cornell modified peat lite soilless mixture recommends the use of the following: ½ quarts of peat moss: ¼ quarts of vermiculite: ¼ quarts of perlite: 1 tablespoon of limestone: ¼ teaspoon of superphosphate. 


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