An easy way to tell if your plants need watering

It’s the time of year when the sun shines brightest – and we want our gardens to look their best. When it’s hot outside, it’s tempting to think that your plants could do with all the water they can get.

But you could derail your efforts by overwatering. Signs of overwatering can include yellowing of leaves, wilting despite sufficient moisture, and fungal growth at the base of the plant. Additionally, overwatering can attract pests such as slugs and snails, which can further damage the plant.

And underwater watering—which can stunt growth, cause wilting, and more—is just as bad. But there’s a simple test you can do to tell when your plants actually need some H2O.

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According to the Royal Horticultural Society, gardeners can perform the finger test to help guide them when to water. The website advises: “If the surface of the soil or compost is dry, this does not necessarily mean that the plant needs water. Root tips need water, so surface moisture is not always a good indicator.

“If you’re using the touch test, push your finger down into the compost or soil at least finger-deep to see if it’s wet, rather than just feeling the surface.” Their gardening experts also recommend watering in the morning because plants start using water when the sun comes up.

If you don’t water in the morning, the next best time is in the evening when it’s cooler and less water will be lost to evaporation. Signs that your plants may need more frequent watering include:

• Foliage growth or fruit or flower production less than expected
• Leaves or stems that look dull or have lost their luster, sometimes darker or paler than normal
• Changing the position of the leaves, they can tilt down or begin to bend
• Wilting (be careful though, as this can also indicate overwatering!)
• Pots become lighter
• Pots blowing in the wind
• Symptoms of powdery mildew

What about house plants?

According to Tops Day Nurseries, you can use a similar technique with your houseplants. Their experts advise, “The best way to determine when to water your houseplants is by checking the soil’s moisture level. Stick your finger an inch or two into the soil and if it feels dry, it’s time to water your plant.

“If the soil feels wet, then hold off on watering for a few days. Over time, you’ll get to know your plant’s watering needs and frequency.”

They also say that in general, your houseplants will need more water in the summer and less in the winter months when they grow more slowly and the air is drier.