When Should You Water Plants in Hot Weather

Watering plants in hot weather can be a tricky business. On the one hand, plants need water to survive, especially during times of drought or heatwaves. On the other hand, watering too much, too little, or at the wrong time can do more harm than good. In general, it's best to water plants early in the morning or late in the evening, when the sun is low and temperatures are cooler. Let's explore why this is the case.

Why Water in the Morning or Evening?

The reason for watering plants in the morning or evening is simple: to minimize water loss due to evaporation. When you water in the middle of the day, when the sun is high and temperatures are hottest, much of the water will evaporate before it has a chance to soak into the soil or reach the roots. This means the plant doesn't get the water it needs, and you end up wasting water. By contrast, watering in the early morning or late evening can help minimize evaporation, which means more water gets to the plant.

How Much Water Do Plants Need in Hot Weather?

The amount of water your plants need in hot weather depends on several factors, including the type of plant, its age and size, and the weather conditions. As a general rule, young plants and newly planted trees and shrubs require more water than mature plants, as they have smaller root systems and can't access as much water. Additionally, plants that are exposed to direct sunlight or hot, dry winds will need more water than those in a shaded or protected area. In general, aim to give your plants enough water to moisten the top 6 to 8 inches of soil, but not so much that the soil becomes waterlogged.

How Often Should You Water Plants in Hot Weather?

The frequency of watering in hot weather will again depend on the type of plant, its age and size, and the weather conditions. In general, it's better to water deeply and less frequently than to water shallowly and more often. This helps encourage deep root growth, which helps plants access water and nutrients more easily. A good rule of thumb is to water once or twice a week, but adjust this as needed based on the plant's needs and the weather conditions. To determine if your plants need watering, check the soil moisture level by inserting your finger into the soil. If it feels dry to the touch, it's likely time to water.

Other Tips for Watering Plants in Hot Weather

In addition to watering in the morning or evening, you can take other steps to help your plants thrive in hot weather:

Water at the base of the plant rather than from above, as this can help reduce water loss due to evaporation and prevent diseases caused by excess moisture on leaves.

Use a watering can or hose with a spray nozzle to deliver water gently and evenly to the soil.

Consider mulching around plants to help retain moisture in the soil and reduce water loss due to evaporation.

Be sure to water newly planted trees and shrubs regularly until their roots have had a chance to become established.

By following these tips, you can help ensure that your plants stay healthy and hydrated during hot weather, even during times of drought or water restrictions. Remember, watering plants in hot weather is all about balance: giving them enough water to survive without overwatering and wasting water.