Petunia
Water below
64%
Healthy band 70% to 92%
Needs wateringJust watered
Estimated Reasoned from rooting depth and drought tolerance. Worth checking against your own bed.
In baskets and containers expect daily watering in summer. Very quick to sulk when dry.
In baskets and containers expect daily watering in summer. Very quick to sulk when dry.
Setting the threshold
These figures are a tested starting point on a calibrated monitor. Watch one full wet to dry cycle in your own bed and adjust if the plant tells you otherwise. Soil type, container size and how much sun the spot gets all shift where the right number sits.