Plant petunias in full sun
Use well-draining soil
Water when the top inch of soil feels dry
Water at the base of the plant
Avoid overwatering
Deadhead faded flowers regularly
Pinch back leggy stems
Fertilize every 1 to 2 weeks with a balanced liquid fertilizer
Remove damaged or yellowing leaves
Space plants properly for good air circulation
Protect from heavy rain and strong wind
Check regularly for pests like aphids and caterpillars
Treat pests promptly if found
Mulch lightly to retain moisture and suppress weeds
Replant or refresh containers if roots become crowded