The Best Time To Water Your Plants During a Heatwave - Backyard Boss
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The Best Time To Water Your Plants During a Heatwave

You’re in the middle of a heatwave and your plants are looking thirsty. You don’t want to water them too much, because then you’ll have to deal with rotting roots and fungus, but you also don’t want to let them die from the sweltering heat. So, what’s the right thing to do? When is the best time to water your plants during a heatwave? Keep reading for some guidelines!

Watering During The Day, Afternoon, Or Evening?

watering purple flowers
Image credits: Torsten Dettlaff via Pexels

It’s no secret that during a heatwave, plants can suffer. The sun blazes down mercilessly, drying out the soil and stressing the leaves. If you don’t take steps to protect your plants, they will start to wilt and eventually die.

So, when is the best time to water your plants during a heatwave?

Early morning is the best time to water your plants. The cooler temperatures mean that the water will be absorbed more slowly, giving the roots time to take in what they need. Watering in the middle of the day should be avoided, if possible, as this is when the temperatures are at their highest and evaporation is at its peak.

If you can’t water your plants in the morning, then the evening is the next best time. Watering in the evening will help to cool the leaves down and reduce stress. Just be sure not to water too late, as this can encourage fungal growth.

Whenever you water your plants during a heatwave, make sure to do it slowly and evenly. Saturate the soil but don’t flood it, as this can do more harm than good. And always check the forecast before watering, as a sudden thunderstorm can negate all your hard work!

How To Water Your Plants During A Heatwave

Watering tomato plants
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As the temperatures start to rise, your plants will need more water to stay healthy. But how do you know when and how much to water them?

Here are some tips on the best time to water your plants during a heatwave:

  • As mentioned above, water early in the morning or evening, when it’s cooler. Avoid watering during the hottest part of the day.
  • Apply water directly to the roots of your plants, rather than watering from above. This will help reduce evaporation and ensure that the water actually reaches the roots. Additionally, watering the leaves of your plants increases the chance of fungal growth. It is best to avoid watering from above at all times.
  • If possible, use a drip irrigation system or soaker hose to deliver water slowly and directly to the roots. This can be more efficient than hand-watering if your forgetful and will reduce water waste.
  • Mulch around your plants to help retain moisture. This will also protect the roots from the extreme heat.
  • Check your soil regularly to see if it’s dry. If it is, water deeply and thoroughly.
  • Pay attention to your plants for signs of stress, such as wilting leaves or brown edges. These may be early signs that your plants need more water.

By following these tips, you can help your plants stay healthy during a heatwave.

Why You Should Never Water in The Afternoon

Watering newly planted tomatoes and potted basil growing in a container garden
Image credits: WNstock via Shutterstock

When it gets hot outside, you may be tempted to water your plants in the afternoon to cool them off. However, this is actually one of the worst things you can do for them! Here’s why:

  • The sun will scorch the leaves: If you water your plants in the afternoon when it’s sunny out, the water droplets will act like magnifying glasses and scorch the leaves. This can cause permanent damage or even kill your plants.
  • The water will evaporate too quickly: When it’s hot and dry outside, the water you give your plants will evaporate before it has a chance to reach the roots and provide any benefit. So not only are you wasting water, but your plants aren’t getting the hydration they need.
  • The roots will bake in the heat: If the roots of your plants get too hot, they can start to die. This is especially a problem for plants that are already stressed from the heatwave.

Cool Your Plants Down This Summer

Hopefully, these tips have helped you figure out when and how much to water your plants during these hot summer days. If you’re looking for more information on garden care, check out our other gardening blogs and find everything your garden needs to stay healthy and beautiful.

And don’t forget to ask questions or leave some tips of your own in the comments below!