How to Keep Outdoor Plants Watered when You're on Vacation

Move portable plants to a cool area if you will be gone for a short time. If you’ll only be gone a few days or a week, move your plants into a cool place away from the sun, such as a shady area of your deck or your garage. Place drip pans under the plants and water them extra well. Unless there is a heat wave while you are gone, they should be fine.^[5]

• Insulate the plants even more by double potting them. Place each pot into a larger pot, then fill the space between them with soil or fine mulch.

Make a mini-greenhouse to water a small group of plants long term. Buy a ready-to-use terrarium for your plants, or make your own. To do this, place a clear plastic bag in a cool area out of direct sunlight. Lay a moist towel along the bottom of the bag. Place as many potted plants inside as you can fit. Then, pull the sides of the bags up and over the top of the plants. Blow some air into the bag so it puffs up. Finally, twist the top of the bag shut and secure it with a rubber band.^[6]

• Because the plants will release water and the excess will drip back down to feed their roots, your plants can live happily in their greenhouse for months.
• Remember to keep your mini-greenhouse out of direct sunlight or it will heat up your plants too much and could kill them.

Rig a short-term self-watering system with a plastic bottle. Cut off the bottom of a 2-liter (½ gallon) plastic bottle. Remove the lid. Secure a small piece of gauze around the opening with a rubber band. Insert the neck of the bottle into the soil next to your plant. Fill the bottle with water the day before you leave and top it up once again on your way out.^[7]

• The plant will take in water from the bottle as needed while you’re away. Depending on how much water the plant consumes, you can use this method for up to 1 week.
• For smaller pots, use smaller plastic bottles or cough syrup bottles.

Use watering bulbs for a self-watering solution that’s decorative. Watering bulbs are small watering systems made from glass or plastic that you can fill with water and stick into the soil next to your plant. The water flows down from the bulb when the soil becomes dry. They are not only quite effective, but they also come in lots of different colors and shapes, so you can use them as permanent decoration in your garden.^[8]

• You can find watering bulbs at your local gardening store or online. They can provide water to small plants for up to 2 weeks.
• To prevent the watering bulb from getting clogged with dirt, secure some cheesecloth on the tip with a small rubber band before you insert it into the soil.^[9]

Use a bathtub for a simple yet effective solution. Place pots with holes in the bottom in a long, shallow container filled with about 3–4 inches (7.6–10.2 cm) of water. You can use a large basin or other container, or move your plants into your bathtub.^[10]

• Be sure that your container is in a cool, dry place away from direct sunlight.
• Standing water can attract various insects. If you will be gone for more than a week, spray the container with a plant-friendly mold and bug deterrent. Make your own by mixing 1 tablespoon (15 ml) of 3% hydrogen peroxide with 1 cup (240 ml) of water and 3 drops of dish soap. Spray the mixture on the container filled with water before you add your plants.

Put your sprinkler on a timer for a simple solution. If you have a sprinkler system in your yard, buy a timer and set it to water your plants on a fixed schedule while you are away. To find the right schedule, first monitor exactly how much water you give each area of your garden in one week. Then, place small cans in different parts of your garden and run the sprinklers for 10 minutes. Measure how much water was collected in each can. The individual sprinkler heads can be programmed on different schedules to accommodate the different watering needs of your plants.^[11]

• If your sprinkler system does not have a rain sensor, you may want to entrust a friend or neighbor to manually turn off the sprinkler system in case it rains while you are away. Otherwise, the sprinkler will still run when it’s raining and will overwater your plants.

Set up a wicking system that can serve several plants at once. Gather an absorbent wicking material (thick yarn, natural fiber rope, or strips of a cotton T-shirt) and a container to hold water. Place 1 end of your wicking material in the water, making sure it reaches all the way to the bottom of the container. Put the other end about 3 inches (7.6 cm) into the plant’s soil. When the soil gets dry, the water will travel up the wicking material to replenish the moisture.^[12]

• Large bottles, bowls, or pails work well as containers.
• Insert 1 wick into every plant. You can use the same container of water for several nearby plants.
• Be sure your wicking system is working before you leave. Sometimes the wicks don’t work effectively and you’ll have to switch them out for new ones. Put the wicking system together and test it for at least a week before you leave.
• If you are having trouble getting the water to wick properly, try positioning the container of water higher than the plant and use a shorter wick.^[13]
• Some plants, such as cactus or succulents, grow best when their soil dries out completely between waterings. Watering these plants with a wicking system is not recommended.^[14]

Invest in a permanent, professional wicking system with self-watering pots. Self-watering pots use a wicking system inside the pot. All you need to do is fill the reservoir at the bottom of the pot with water, and the wick inside will provide water to the plant when the soil becomes dry. Test out the self-watering pots about a month before your trip so you know how long a full reservoir will last.^[15]

• Find self-watering pots in your local gardening store or online.
• Some self-watering pots also have an indicator that shows how much water is left in the reservoir so you know when you need to fill it up.^[16]
• Self watering containers aren’t a good idea to use for plants that need to dry out between waterings, like cactus or succulents.