Why Monsoon Is a Tricky Season
The shift from scorching summer to the damp monsoon season changes everything for indoor plants. The air becomes saturated with moisture, which means the soil in your pots dries out much more slowly. This is the primary challenge: while it feels like
plants should be happy with the rain, the combination of high humidity and reduced evaporation can lead to waterlogged soil. This suffocates the roots, preventing them from absorbing oxygen and nutrients, a condition that quickly leads to root rot, the number one killer of indoor plants during this season. Compounding this is the lack of sunlight due to overcast skies, which slows down photosynthesis and overall growth, making plants weaker and more susceptible to problems.
Master the Finger Test
Forget your fixed watering schedule from the summer months; it's the fastest way to harm your plants in the monsoon. Instead, rely on the single most effective tool you have: your finger. Before even thinking about watering, push your finger about an inch or two into the soil. If the soil feels damp and sticks to your finger, wait. Only water when the top layer of soil feels dry and crumbly. For most common houseplants, this might mean changing your watering frequency from every few days in summer to once every 10 to 14 days during the monsoon. When in doubt, it is always better to wait another day, as plants recover far more easily from being slightly dry than from drowning in soggy soil.
Ensure Proper Drainage and Airflow
Good drainage is non-negotiable during the rains. Ensure every pot has drainage holes that are not clogged. If you use decorative outer pots without holes, make it a habit to empty any collected water immediately after watering. Elevating your pots on stands or even bricks can significantly improve drainage and airflow around the base, preventing water from stagnating. Indoors, stagnant, humid air is a breeding ground for fungal diseases like powdery mildew. Improve air circulation by spacing your plants out and, if possible, opening windows during dry spells to let fresh air in. A gentle breeze helps foliage dry and reduces the risk of infections taking hold.
Adjust Light and Location
With persistently cloudy skies, sunlight becomes a precious resource. Your plants, which were comfortable in a particular spot during summer, may now be struggling for light. To compensate, move your plants closer to windows that receive the most light, such as east-facing ones that get the morning sun. Regularly rotating your pots ensures that all sides of the plant get some light exposure, preventing lopsided or leggy growth. Wiping down your windows can also make a surprising difference in maximising the amount of light that gets through. This simple adjustment helps plants continue to photosynthesise, keeping them strong enough to withstand the stresses of the season.
Watch for Pests and Diseases
The damp, humid conditions of the monsoon are an open invitation for pests and fungal diseases. Fungus gnats, tiny flying insects that breed in constantly moist topsoil, are a common nuisance, with their larvae feeding on delicate plant roots. Mealybugs and other fungal spots also thrive in this weather. Be vigilant and inspect your plants regularly, checking under leaves and around the stems. To prevent issues, let the topsoil dry out between waterings. Pruning away any dead or yellowing leaves and removing fallen debris from the soil surface can also help, as this decaying matter can host fungal spores. For a natural preventive measure, a spray of neem oil solution every couple of weeks can keep many common pests and fungi at bay.
