Newsletter Articles
How to Keep Plants Alive While You Travel (SoCal Guide)
Written by Kelsey W.
Leaving town means no one is watering your plants, and in Southern California heat a pot can dry out and a plant can wilt in just a few days. You keep them alive by watering deeply the day you leave, grouping pots together in the shade, mulching to slow evaporation, and setting up a drip timer or self-watering system so water keeps reaching the roots while you are away.
Quick answer: The goal is to slow how fast your plants dry out and keep water coming while you are gone.
- Water deeply the morning you leave, until water runs out the bottom of each pot.
- Group pots close together and move them out of the sun into a cooler, shadier spot.
- Spread a layer of mulch on the soil to slow evaporation.
- Set up a drip line on a battery timer, or use self-watering pots or a wick from a water reservoir.
- For houseplants, raise humidity with a clear plastic cover; for long trips, ask a neighbor to check in.
| Method | Best for | How it works |
|---|---|---|
| Drip on a timer | Outdoor beds and groups of pots | A battery or clock timer runs the drip line automatically, delivering water to the roots on a set schedule. |
| Self-watering pot or wick | A few containers or houseplants | A reservoir and a wick draw water up into the soil gradually, so the plant waters itself for a while. |
| Group, shade, and mulch | Short trips with no watering setup | Clustering pots in shade and mulching slows evaporation and buys extra time between waterings. |
| Clear cover for houseplants | Indoor plants on short trips | A clear plastic bag or cloche traps and recycles humidity around the plant to hold moisture in. |
| Neighbor or plant-sitter | Trips longer than about a week | A person checks and waters as needed, the only reliable option for long absences. |
How Long Can Plants Go Without Water
There is no single number, because it depends on the plant, the pot size, the soil, and how hot and dry the weather is. University of Maryland Extension explains that when plants run short on water they show drought stress as wilting, leaf curl, yellowing, scorch, browning, and leaf drop, with the damage depending on how deep and how long the water deficit runs rather than on a fixed clock.[1] In Southern California heat the soil dries faster, so the safer approach is to prepare your plants before you go rather than guess how many days they can last.
Prep Your Plants Before You Leave
Start by making your plants hold as much water as possible and lose it as slowly as possible. Water each plant deeply the day you leave: University of Maryland Extension advises watering until it runs out the bottom, and notes that soil which has dried and pulled away from the pot sides may need several passes to fully rehydrate.[1] Next, slow the drying: Kansas State University Research and Extension recommends grouping container plants close together so their canopies touch and moving them out of sunny spots into the shade, which reduces water loss while you are gone.[2] Finally, mulch the soil surface: Penn State Extension notes that a 2 to 4 inch layer of organic mulch conserves soil moisture by increasing water infiltration and slowing evaporation.[3] A shady, sheltered corner helps too, which is where knowing your yard’s microclimates pays off, and our guide to water-wise watering covers deep watering in more detail.
Set Up a Watering System While Away
For anything longer than a short weekend, let a system do the watering for you. University of Illinois Extension recommends a drip system on a timer, which takes the guesswork out of watering, delivers water gradually to the root zone, and uses 30 to 50 percent less water than sprinklers.[4] Kansas State University Research and Extension points out that container plants can be hooked to the same drip line and watered automatically by the timer along with the rest of the landscape.[2] For just a few pots, University of Illinois Extension describes self-watering containers and a cotton wick run from a water reservoir, which pull water up into the soil so the plant irrigates itself for a while.[5] Our container gardening tips can help you set pots up for easy watering.
Houseplants and Low-Water Plants
Indoor plants and drought-tolerant plants are the easiest to leave behind. For houseplants, University of Illinois Extension suggests grouping them together and covering them with a clear plastic bag set in a shallow pan of pebbles and water, a setup that can hold moisture for about a week; for longer trips, have someone check on them.[6] Penn State Extension explains that a clear plastic or glass cover works because it recycles humidity in the plant’s immediate surroundings, and it cautions that a pebble tray alone does little for room humidity.[7] Drought-tolerant and well-adapted plants are the most forgiving of a missed watering, so if you travel often, lean on low-water choices like our favorite SoCal native plants and keep a few easy houseplants indoors.
Headed out of town? Stop by any Green Thumb Nursery and our team can help you set up drip timers, self-watering pots, and low-water plants so your garden is fine while you are away.
Traveling Gardener FAQ
How do you water plants when you are away?
Use an automatic system or slow the drying. University of Illinois Extension recommends a drip line on a timer that waters the roots on a set schedule while you travel, and for a few pots, self-watering containers or a wick from a reservoir.[4]
How do you keep potted plants alive on vacation?
Water deeply, then slow the loss. Kansas State University Research and Extension recommends grouping pots together and moving them into the shade to reduce water loss, and hooking containers to a drip timer for longer trips.[2]
How do you keep houseplants watered while on vacation?
Trap humidity around them. University of Illinois Extension suggests grouping houseplants and covering them with a clear plastic bag over a pebble-and-water tray, which can hold moisture for about a week before someone needs to check on them.[6]
How long can plants survive without water?
It varies widely and has no single answer. University of Maryland Extension notes that water-short plants show wilting, leaf curl, yellowing, and leaf drop, with survival depending on the plant, pot size, soil, heat, and how long the deficit lasts, not on a set number of days.[1]
What plants are best if you travel a lot?
Drought-tolerant and low-water plants, because they are the most forgiving of a missed watering. Pairing them with mulch, which Penn State Extension notes conserves soil moisture and slows evaporation, keeps them going longer between waterings.[3]
Sources
- [1] University of Maryland Extension, Drought Stress to Indoor Plants: extension.umd.edu
- [2] Kansas State University Research and Extension, Maintaining Container Plants When on Vacation: johnson.k-state.edu
- [3] Penn State Extension, Mulching Landscape Trees: extension.psu.edu
- [4] University of Illinois Extension, Drip Irrigation in the Home Garden: extension.illinois.edu
- [5] University of Illinois Extension, Good Growing: Getting Your Garden Ready for Vacation: extension.illinois.edu
- [6] University of Illinois Extension, Houseplant Care: extension.illinois.edu
- [7] Penn State Extension, Humidity and Houseplants: extension.psu.edu
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