Why Monsoon Changes Everything
The single biggest mistake in monsoon plant care is continuing a summer watering schedule. During the rainy season, the air is saturated with moisture. This high humidity slows down evaporation from the soil and transpiration (water loss) from plant leaves.
Compounding this, persistent cloud cover means there is significantly less sunlight. Less light leads to slower photosynthesis, which means the plant doesn't use water as quickly. This combination creates a dangerous environment inside your pots: the soil stays wet for much longer, creating the perfect conditions for problems like root rot.
Ditch the Schedule, Trust the Soil
The golden rule for monsoon watering is to water only when the plant needs it, not on a fixed calendar. Before you even think about reaching for the watering can, check the soil. The most reliable method is the finger test: insert your finger about one to two inches into the pot. If the soil feels dry at that depth, it's time to water. If it feels moist, wait another day or two and check again. For many common indoor plants like pothos and peace lilies, this might mean you only need to water once every 10 to 15 days, a drastic change from summer.
Know the Signs of Overwatering
It can be tricky to tell if a plant is overwatered or underwatered, as both can cause wilting. However, overwatering has distinct signs. The most common is yellowing leaves, especially the lower ones. The leaves may feel soft and limp, not crisp and dry. You might also notice a musty or foul smell coming from the pot, which is a tell-tale sign of decaying roots. Other red flags include mould growing on the soil surface, mushy stems near the base, and the presence of tiny flying pests called fungus gnats, which are attracted to constantly damp soil.
Water Smarter, Not Harder
When you do determine it's time to water, do it effectively. Water the soil thoroughly, not the leaves, until you see water run out of the drainage holes at the bottom. This ensures the entire root system gets a drink and helps flush out any mineral buildup. After watering, make sure to empty the saucer or tray beneath the pot. Letting a plant sit in a pool of water is one of the fastest ways to induce root rot, especially during the humid monsoon months.
Good Drainage is Non-Negotiable
Smarter watering won't help if the water has nowhere to go. This is why good drainage is critical. Ensure every pot has drainage holes. If you use a decorative outer pot without holes, always remove the inner plant for watering and let it drain completely before placing it back. Using a well-draining potting mix is also essential. Heavy, clay-based garden soils hold too much water for containers. Instead, use a mix containing components like cocopeat, compost, and perlite, which allows water to flow through while retaining air pockets for the roots to breathe.
Beyond Watering: Light and Airflow
While watering is the main challenge, other adjustments can help your plants thrive. With less sunlight available, move your plants closer to windows to maximise the light they do receive. Rotating them every few days ensures all sides get some light. Good air circulation is also key to preventing fungal diseases like powdery mildew, which flourish in damp, stagnant conditions. If possible, space your plants out to improve airflow or use a small fan for a few hours a day to keep the air moving. Reducing fertiliser is also wise, as most plants grow more slowly in this season and don't require as many nutrients.
