Why Damp Weather Changes the Rules
During dry, hot weather, the water you give your plants is used up quickly. Some is absorbed by the roots, and a lot evaporates from the soil and through the leaves in a process called transpiration. But when the air is already heavy with moisture, evaporation
slows to a crawl. The soil stays wet for much longer, and the plant's roots have less work to do to pull moisture from the air. If you continue watering on your summer schedule, you're unintentionally creating a waterlogged environment where roots can't get the oxygen they need to survive. For many common houseplants in India, this means they may only need watering once every 10 to 15 days during the monsoon, a drastic change from the hotter months.
The Number One Killer: Root Rot
The single biggest threat to your plants during a damp season is root rot. This isn't a disease you can catch, but rather a condition caused by a lack of oxygen to the roots. When soil is constantly soggy, the air pockets that roots rely on are filled with water. The roots essentially suffocate and begin to decay. This creates an ideal environment for fungi and bacteria to thrive, accelerating the decay. The initial signs of trouble—like yellowing leaves—can be confusing, but a musty or sour smell from the soil is a clear red flag. Once root rot sets in, it can be very difficult to save the plant.
Is It Thirsty or Drowning?
One of the trickiest parts of plant care is that the signs of overwatering and underwatering can look deceptively similar. A plant might wilt or its leaves might turn yellow in both scenarios. The key is to play detective. An underwatered plant's leaves will feel dry and crispy, and the soil will be bone-dry, perhaps even pulling away from the sides of the pot. An overwatered plant, however, will have limp, soft leaves, and the soil will be damp or even soggy to the touch. The wilting happens because the rotten roots can no longer absorb water effectively, so the plant is effectively dehydrating even while sitting in water.
Your New Watering Mantra: Check First
Forget your calendar-based watering schedule. During damp weather, your new mantra is simple: check the soil first. The most reliable method is the 'finger test'. Push your finger about one to two inches into the soil. If it feels dry at that depth, it’s time to water. If you feel any moisture, wait. For those who prefer a more precise tool, a moisture meter can take the guesswork out of it entirely. When you do water, do so thoroughly until water runs out of the drainage holes, then make sure to empty the saucer beneath the pot. Letting a plant sit in a tray of excess water is one of the fastest ways to cause root rot.
More Than Just Water
Balanced watering is critical, but a few other adjustments will help your plants thrive during the damp season. Good drainage is non-negotiable; ensure every pot has clear drainage holes. You can even elevate pots on stands or bricks to improve airflow and prevent water from pooling underneath. This is also a good time to hold back on fertiliser, as plants grow much slower in lower light and don't need the extra nutrients. Finally, since damp, still conditions can encourage pests and fungal growth, try to improve air circulation by opening a window or using a small fan, and keep an eye out for any signs of trouble like fungus gnats or powdery mildew.
