Do plants take up more water at night?
If you are looking for garden water-saving tips, plants do absorb water during the evening and into the night but not any more than in the morning. Plants will take up water throughout the day, though they are most ready to absorb water through their roots in the morning. They will then take in more moisture during the day than they do at night and watering in the morning allows the plants to take in all the water required to set them up for the day ahead.