How to Stop Mould Growing in Plant Pots

Mould growing in a plant pot is a common problem that most gardeners encounter. It is especially frustrating when the mould grows on your precious plants and kills them. Mould growth in plant pots is caused by a variety of factors, including excessive moisture, poor soil drainage, and inadequate air circulation. In this article, we'll explore some practical tips on how to stop mould growing in plant pots.

1. Use the Correct Soil Mix

The right soil mix is crucial in preventing mould growth in plant pots. Ensure that the soil mix you use has the right proportion of organic matter and sand or perlite. Organic matter provides nutrients and moisture retention, while sand or perlite facilitates drainage and aeration. The combination of these two components creates a soil environment that is unfavourable for mould growth.

2. Water Plants Properly

Overwatering is a common mistake that most gardeners make, and it leads to fungal growth in plant pots. Water your plants only when the top 2-3 inches of soil feel dry to the touch. The frequency of watering depends on the plant species and the time of the year. During the rainy season, scale down your watering routine, as the soil retains more moisture. Also, avoid watering from the top, as this can promote mould growth. Instead, water at the base of the plant to avoid wetting the leaves and stems.

3. Ensure Proper Drainage

Remove excess water from the plant pot tray after watering to prevent the soil from becoming water-logged. Soil that is constantly drenched creates conducive conditions for mould growth. Improve drainage by drilling holes at the bottom of the pot or using a raised bed. Also, place a layer of gravel or pebbles at the bottom of the pot to facilitate drainage.

4. Maintain Proper Air Circulation

Adequate air circulation around the plant is essential in managing mould growth. Keep your plants in an open space where there is adequate air movement. Avoid crowded spaces that restrict airflow, and prune excessive foliage to increase air flow between the leaves.

5. Use Fungicides

Fungicides are another option you can use to control mould growth in plant pots. These are chemicals that kill or inhibit the growth of mould. However, use fungicides cautiously and strictly follow the instructions indicated on the label. Overuse of fungicides can lead to the buildup of toxic chemicals in the soil, which is harmful to plants.

6. Change Your Potting Mix Regularly

Over time, soil loses its nutrients and structure, making it less effective in supporting plant growth. Change the soil in your plant pots every three to six months depending on the plant species. This ensures that the soil has enough nutrients to sustain the plant and prevent mould growth.

Conclusion

Mould growth in plant pots is a common problem that can be frustrating for gardeners. However, following the above tips can help you manage the issue and ensure healthy plant growth. Ensure proper soil mix, watering, drainage, air circulation and use of fungicides. Regularly change your potting mix to maintain soil quality.