A little prep before a trip is much easier than reviving plants that have gone too long without water.
Simple Self-Watering Tricks
Grouping potted plants together in a bathtub or on a tray of moist pebbles raises humidity and slows drying out. A cotton wick or strip of fabric running from a water reservoir into the pot can keep soil steadily moist for a week or more without any equipment.
Give Everything a Deep Drink First
Water thoroughly the day before leaving so soil is fully saturated at departure, giving plants the biggest possible reserve to draw from. Moving plants out of direct, hot sun temporarily also slows how quickly they use up that stored moisture.
Outdoor Gardens Need a Plan Too
A thick layer of mulch conserves soil moisture in outdoor beds while you're away, and a simple timer-controlled sprinkler or drip system takes the guesswork out of watering during an extended absence. A neighbor doing a mid-trip check is still the most reliable backup for anything longer than a week.