Overwatering can lead to root rot or fungal diseases (when a plant is continuously overwatered, it can deprive the roots of oxygen and promote the growth of fungi in the soil). “But,” you say, “they look so thirsty!?” Resist the temptation to water and feel the soil for moisture first. The leaves are wilting so there is less surface area for sun exposure. Heat and sun exposure will cause leaf wilt, occurring because of transpiration, or when a plant releases moisture to protect itself in excessive heat. Too much water can cause damage to your plants as much as under watering can. If you do not have an irrigation system, an overhead sprinkler or hand watering will work, just do it in the cool hours of the morning or early evening. Using a drip irrigation system or a soaker hose will ensure a deep watering. Strive for a deep watering two or three times a week. Giving them water midday is inefficient and most of it will evaporate before it gets to the roots. Watering in the morning or early evening is the best for your garden. Watering is essential when it’s hot, but watering correctly is far more important. To keep your plants cool in hot weather, you must ensure they don’t get too thirsty. Water Correctly to Prevent Heat Stress in Plants Even with adequate watering and mulching, plants can suffer when the temperatures rise but there are a few things you can do to help protect plants from heat stress during the hottest part of the summer. Just like us, they need special care in extreme heat.
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