A potting mix comprises a number of components that support the proper growth of potted plants. These combinations are meant to prevent the soil from becoming too compacted, which might suffocate roots and impede the circulation of water and nutrients. A quality potting mix should be fluffy, light in weight, and able to hold moisture. There are several all-purpose mixes and more specialized mixtures available.
The following are the primary functions of potting mix:
- To keep moisture and nutrients around the roots of your plants.
In your container garden, soil serves as a reservoir for these vital ingredients of life.
- To make sure that enough air is available for the roots to develop.
Once you’ve planted your container, there has to be room for the roots to breathe and not rot. Most people don’t realise it, but a sufficient amount of air in the soil is essential. If there isn’t enough, the plant roots will struggle to survive.
- To provide root support for your plant.
A soil mix should settle around your plant’s roots and hold it in place so it doesn’t blow away in the first wind. It must, however, be lightweight.
Potting mix vs Potting soil
There is a distinction between potting soil and potting mix, despite the fact that the phrases are sometimes used interchangeably.
The difference between potting soil and potting mix is that potting soil may or may not contain dirt, whereas the latter is a soilless medium. Because it is sterile, it does not include pathogens like fungus or other illnesses, making it safer for plants.
Does a potting mix go bad?
The decomposition of peat moss and other components in potting soil causes compaction and nitrogen loss. Potting mix can become polluted and harbour soil diseases. It should be changed at the start of each growing season for best results. Unopened bags should be used within 6 months of purchase, while opened bags should be used within 1 to 2 years.
Choose the right potting mix: rules of the thumb
- In pots, the potting mix should be light and fluffy.
- Look for peat moss, pine bark, and perlite or vermiculite in your potting soil.
Fertilizer can be applied as a “starter charge” or as a slow-release solution. Make the necessary adjustments to your fertilisation methods.
- If you use one that contains these chemicals, you may need to change your watering habits.
