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https://hydropgrow.com/wp-content/uploads/2026/10/6-1024x683.png1024683Hydroponic gardens can continue producing during hot weather, but a heatwave increases the importance of temperature, oxygen, water consumption, airflow, and light management. Warm water holds less dissolved oxygen than cooler water, while plants may also transpire faster as air temperature rises. Indoor gardens can become especially challenging if ventilation or air conditioning is limited. Heat management should therefore focus on the entire growing environment rather than one temperature number.