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Heading Out of Town? Use a Plastic Bag to Keep Your Plants Alive

A few smart tricks can keep your indoor jungle hydrated and healthy while you're off soaking up the sun.

Headshot of David Watsky
Headshot of David Watsky
David Watsky Managing Editor / Home and Kitchen
David lives in Brooklyn where he's spent more than a decade covering all things edible, including meal kit services, food subscriptions, kitchen tools and cooking tips. David earned his BA from Northeastern and has toiled in nearly every aspect of the food business, including as a line cook in Rhode Island where he once made a steak sandwich for Lamar Odom. Right now he's likely somewhere stress-testing a blender or tinkering with a toaster. Anything with sesame is his all-time favorite food this week.
Expertise Kitchen tools | Appliances | Food science | Subscriptions | Meal kits
Headshot of Sarah Mitroff
Headshot of Sarah Mitroff
Sarah Mitroff Freelance Editor
Sarah Mitroff has worn many hats at CNET, including Senior Mobile Editor and Managing Editor of Health and Wellness. Currently, she is a freelance editor. Throughout her career, she's written about mobile tech, consumer tech, business and startups for Wired, MacWorld, PCWorld, and VentureBeat.
Expertise Tech | Health | Lifestyle
David Watsky
Sarah Mitroff
4 min read
plants on coffee table

Don't let your plants suffer while you're enjoying your trip.

Josh Miller/CNET

Leaving your plants unattended for weeks -- or even days -- can cause major stress on them, but it doesn't have to. If you've cultivated an indoor garden you love, these four simple methods will keep your greenery thriving while you're off lounging on the beach or indulging in adventures abroad.

When you can't be there to water them in person, devising a system to keep the soil moist can save even the most fragile flora from fading in the August heat. Using a plastic bag to create a makeshift greenhouse, or setting your ferns and ficuses up with a water wick will allow you to enjoy your summer jaunt without worry of coming home to a greenery graveyard. 

Just a note: Only use these techniques for plants that need daily watering, like herbs, vegetables and other common houseplants. Your succulents would rather you leave them alone when you're out of town.

Below, you'll find four ways to keep plants alive while on vacation.

1. Turn a plastic bag into a greenhouse

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This method seems unconventional, but it works wells for longer vacations.

Get a clear plastic bag big enough to cover your plant and its pot. Add stakes to the pot to prevent the bag from clinging to the plants. Some say that the bag should absolutely not touch the leaves, but a little bit of contact is OK.

Water your plants as normal, being sure not to overly saturate them.

Place the plant into the bag, pulling the bag up and around your plant. Blow a bit of air into the bag before you seal it to help the bag balloon around your plant. It's just more insurance that the bag won't press up against the leaves.

Leave your plant in an area with indirect light (direct sunlight will heat up the bag and likely kill your plant). This mini greenhouse will capture water as it evaporates and drip it back into the plant. 

2. Try the traditional water wicking method

A potted plant being watered via the water wicking method

The water wicking technique only requires a few materials. 

Chris Parker/CNET

For this, you need a large water container (like vase or bucket) and some cotton rope. Cotton clothesline, available at most hardware stores, works great.

Cut a piece of cotton rope that's long enough to fit between the bottom of your water container and into your plant's soil.

Take one end of the rope and push it several inches below the surface of the soil, close to the plant. Take care not to disturb the roots.

Rest the other end of the rope in the bottom of your water container and fill it with water. Make sure the rope touches the bottom of your container.

The cotton rope will slowly wick water from the container into the pot, maintaining a constant level of moisture in the soil.

3. Create a DIY drip system 

A plant with a plastic bottle of water tucked in the pot

No need to spend money with this DIY hack. 

Chris Parker/CNET

You've probably seen those glass watering globes you stick into a pot to water your plant. There's no need to buy them though, because you can easily make your own version.

Start with a clean and empty plastic bottle. For a small to medium container, a water bottle will work just fine. Drill several drainage holes into the bottle close to the top.

Before you head out on vacation, water your plant as normal. Fill the plastic bottle with water, and then quickly turn it over and plunge it into the first few inches of soil in the pot. Make sure the bottle is not too close to your plant and that the bottle is deep enough that the soil covers the holes.

The water will slowly leak out of of the bottle as the soil dries out.

For larger pots, you can use an empty wine bottle. Fill it up, place your thumb over the opening, turn it over, and plunge it into the soil.

Read more: Looking for Pet-Safe Houseplants? Try These 7

4. Give your plants a bath

Two plants hydrating in a sink

Here's a fun hack: Give your plants a bath.

Chris Parker/CNET

For pots with good drainage, you can give them a bath while you're away. Well, sort of.

Fill up your sink or bathtub with a few inches of water and lay a towel inside to protect against scratches. Rest your potted plants in the sink and leave them there while you're gone. The soil will draw water up to the roots, keeping the plant hydrated for up to one week.

Take stock of the lighting conditions near your sink or tub -- if your plants need a lot of sunlight, don't keep them in a dark bathroom.

Learn everything you need to grow a beautiful, healthy garden with CNET's gardening guide. Want to find out if technology can grow a better garden? We test the latest gardening tech.