When temperatures soar above 30°C (86°F), many gardeners assume that watering their plants at noon or in the evening is the right move. But surprisingly, these habits might actually harm your garden. There’s a lesser-known window of time that proves to be the most efficient and plant-friendly for watering in extreme heat.
At noon, the sun is at its highest point, causing immediate evaporation. Water fails to soak into the soil, and droplets on leaves can act like magnifying glasses, scorching plant tissue.
While cooler, evening watering allows moisture to linger on leaves overnight, promoting the growth of fungi and mildew such as downy mildew and powdery mildew.
The soil is still cool, enabling water to penetrate deeply and effectively. Leaves dry out naturally as the day warms, reducing evaporation losses.
Morning watering prevents excess moisture from sitting on foliage, helping to prevent the spread of fungal diseases.
Targeted early watering often maintains soil moisture throughout the day with less water overall.
Use a watering can or drip irrigation to hydrate plant roots directly. This encourages deeper root growth and prevents runoff.
Mulch helps the soil retain moisture, reduces surface evaporation, and minimizes the need for frequent watering.
Setting up a rainwater collection system supports sustainable watering practices, especially during drought restrictions.
Even during a heatwave, strategic watering at the right time can transform your garden into a resilient, green sanctuary. Make this small change in your routine and see the lasting difference it makes for your plants.
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