In my experience as a gardening and landscaping expert, I would not recommend watering plants at night after a hot day. While it may seem like a convenient time to water, there are a few reasons why it is not the best option.
1. Risk of fungal diseases: Watering plants in the evening can create a damp environment that promotes the growth of fungal diseases. Fungi thrive in moist conditions, and when plants are left wet overnight, it increases the chances of fungal spores germinating and infecting the plants. This can lead to issues such as root rot, leaf spots, and powdery mildew.
2. Extended moisture on foliage: When plants are watered in the evening, the foliage remains wet for a longer period of time. This can attract pests like snails, slugs, and certain types of insects that thrive in moist environments. Additionally, prolonged moisture on leaves can also increase the risk of sunburn or scorching the following day when the sun’s rays hit the wet foliage.
3. Limited time for absorption: Watering in the evening gives the plants limited time to absorb the water before nightfall. While plants do continue to absorb some water through their roots during the night, the rate of uptake is generally slower compared to daytime. This means that the plants may not receive enough water to adequately replenish their moisture levels before the next day’s heat.
So, what is the best time to water plants after a hot day? In my experience, it is generally recommended to water in the early evening, allowing enough time for the plants to dry out before nightfall. This way, the foliage has a chance to dry, reducing the risk of fungal diseases. Additionally, watering in the early evening still provides the opportunity for overnight water uptake by the roots.
However, if you prefer to water in the morning, it is best to start very early, before the sun is shining brightly. This will give the plants a chance to absorb the water before the heat of the day evaporates it too quickly. Watering in the early morning also allows the foliage to dry out during the day, reducing the risk of fungal diseases and other issues.
While it may be tempting to water plants at night after a hot day, it is generally not recommended due to the increased risk of fungal diseases, prolonged moisture on foliage, and limited time for water absorption. Watering in the early evening or early morning is a better option to ensure the health and vitality of your plants.
