Why Night is the Worst Time to Water Outdoor Plants

Can we water plants at night in summer

Most people have busy schedules, so they opt to water their plants at night. However, experts suggest that morning or around the evening is the best time of the day to water plants. But why is night the worst time to water outdoor plants?

While watering garden plants at night has benefits like less evaporation, there are also cons that come with it, like the risk of fungal diseases and overwatering. 

Remember, the timing of watering plays a vital role in your plants’ overall health and well-being. So, let’s see the implications of watering your garden plants at night.

If Night is the Worst Time, When is the Best Time to Water Plants?

Generally, the best time to water outdoor plants is early morning. This time, the temperatures are cool, giving your plants time to absorb water before the weather becomes hot.

Additionally, watering in the morning gives the leaves time to dry off during the day, reducing the risk of fungal diseases. If you miss watering your plants in the morning, water them in the afternoon or evening. 

Of course, you might return from work and get wilting plants because you haven’t watered them for a while. Don’t wait till morning; water them while ensuring you don’t wet the leaves. 

Reasons Why Night is the Worst Time to Water Outdoor Plants

Watering outdoor plants at night has been associated with several risks. Here is why you should avoid watering plants at night.

Fungal Growth

Watering plants at night vs morning


At night, the temperatures are cool, plus there is prolonged wetness in the soil because, obviously, there is no evaporation happening. This creates a damp environment, ideal for fungal growth, leading to diseases like root rot.

Extended Leaf Wetness

Extended leaf wetness increases the chances of foliar diseases such as leaf spots and powdery mildew.


Another risk of watering overnight is overwatering, especially if you’re using irrigation systems that are not well set or have faulty timers. This might lead to problems related to waterlogging, like root rot.

Frequently Asked Questions

What is the Best Time of the Day to Drip Irrigate Your Plants?

Worst time to water plants


Early morning is the best time to drip irrigate your garden plants because there is no evaporation, plus the plants can absorb the water efficiently.

What is the Best Time of the Day to Water Vegetables?

The best time to water vegetables is early morning as there is less evaporation; thus, your plants will absorb maximum moisture. In addition, the leaves will have more time to dry off to prevent fungal diseases like leaf spots.

What Will Happen If You Put Too Much Water in Your Plants?

Too much water around your plants will cause water logging, creating an environment for fungal growth. This further leads to fungal diseases like root rot that might kill your plant. An overwatered plant has yellow leaves and stunted growth.

Ultimate Thoughts

Though certain circumstances, like when your plants look wilted or stressed,may require you to water them at night, you need to be aware of risks that come with it.

However, if you struggle to water your plants in the morning or afternoon, you can opt for lee maintenance plants that don’t require much attention. 


Author Profile

🌿 Hello! I'm Mary, the nature-loving soul behind Serene Eden. Gardener, plant whisperer, compost connoisseur, sun-soaked plant enthusiast, and avid bee-watcher. Let's cultivate beauty, one bloom at a time. 🌱🌼