Tomatoes need regular water in summer, but that does not always mean watering every day. The right rhythm depends on heat, wind, soil type, pot size, and mulch.
In many gardens, deep watering is better than a little water every day.
Shallow daily watering can keep roots near the surface. This makes plants more sensitive to heat and drought because the deeper soil stays dry.
Instead, check moisture below the surface. If the soil is still damp a few centimeters down, wait before watering again.
Tomatoes in pots dry out faster than tomatoes in the ground. During a heatwave, containers may need daily watering, sometimes more than once if the pot is small and exposed.
Plants growing in sandy soil or full sun may also need water more often than plants in richer soil with mulch.
Water slowly at the base of the plant so moisture reaches the roots. Avoid wetting the leaves, especially in the evening, because damp foliage can encourage disease.
Add mulch around the base to reduce evaporation and keep the soil temperature more stable.
Wilting in the morning, dry soil below the surface, curling leaves, and light pots are signs that watering may be needed. Slight afternoon wilting during extreme heat can be temporary.
You do not always need to water tomatoes every day in summer. Check the soil, water deeply at the base, and adapt the rhythm to heat, pots, and soil conditions.