What causes water droplets on indoor plant leaves?
When indoor plant leaves develop droplets of water on their tips, it is probably just transpiration as water moves through the plant and evaporates from its leaves, stem, and flowers. Leaves dripping water is a natural occurrence, just like people sweating.
If it is humid, water droplets collect on leaves. This generally occurs in the summer, especially if windows are open. The humidity during the day and the moisture in the air when the dew settles in the morning are all absorbed, to some degree, by plant leaves. Usually, this is a good thing. However, when a plant is already saturated, it needs to release the excess moisture, and it does so by transpiration through its leaves.
You won't see a flood of water being released, just a droplet or two on the tips. This will fall off or evaporate, and you won't see it happen again until conditions are once again right.This transpiration is not hurting your plants, but it might be harming your furniture or floors. There's an easy way to stop the dripping leaves: Cut back on how much you water your plants.
The leaves are dripping because they already have as much moisture as they can hold and cannot absorb any additional water through their leaves. During humid spells, most plants will not need as much water as they normally would. Let your plants be your guide and adjust the amount of water you give them accordingly. Cut back from weekly watering to every second week or so and monitor the plants to see if they still drip or if you have gone too far in the other direction and they are now wilting between watering. The amount of water needed will change throughout the year.