[header] How to choose the best time for watering the garden [title] Water in the morning if possible. [step] This is the best time to water your garden because it works with the plants' natural growth cycle. The plants are ready to drink early in the morning, when the sun is up but not quite high in the sky. 
During the rest of the day, they'll be able to drink in the water before the sun gets hot. Hydrated plants are better able to withstand extreme heat.