How to Make Planter Posts for String Lights

Backyard entertaining doesn’t have to stop at sundown

A man outdoors hanging string lights from wood posts
Photo: Dan Rentea / Getty Images
A man outdoors hanging string lights from wood posts
Photo: Dan Rentea / Getty Images
Kristin Salaky
Written by Kristin Salaky
Senior Editor, Angi
Updated February 27, 2022

Difficulty

Simple

Flex your DIY muscles.

Time to complete

24 hours

It takes 24 to 48 hours for the concrete to dry. Otherwise, this is a relatively quick project.

Cost

Approximately $100 per planter post.

The total project cost will decrease if you already have 4x4 posts, soil, gravel, and/or planters on hand.

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What you'll need:

TOOLS
  • Power drill
SUPPLIES
  • Barrel planters (or other wood planters of your choice)
  • 4x4 wood beams
  • Wood stain
  • Wood sealant or varnish
  • Wood screws
  • Corner brackets
  • Concrete mix
  • Plastic work bucket
  • Crushed stone/gravel
  • Potting soil
  • Flowers or seeds
  • Hook screws
  • Outdoor string lights

The warm glow of string lights creates ambiance in any backyard, big or small. Plus, they’re bright enough to keep summer outdoor fun going well into the night. 

Are you ready to turn your backyard into the ultimate hangout space once the sun goes down? DIY planter posts for string lights make it easy to illuminate your entire backyard without having to staple cables to your house or surrounding trees. Plus, these planter posts provide extra garden space to grow vibrant flowers and greenery without having to touch your current landscaping. 

Learn how to make planter posts for string lights with this simple step-by-step guide.

How to Make a Planter Post for String Lights in 8 Steps

Bulbed string lights hanging from posts in a backyard
Photo: ruslan shramko / Adobe Stock

Building your own string light post out of a wood planter is easier than you may think. Make one post and utilize surrounding trees and structures for support, or make multiple to hang string lights anywhere (or at least anywhere an extension cord will reach). 

Maximize your outdoor living space in a weekend with this simple DIY project. 

  1. Stain and Treat Posts 

    Start by staining each of the 4x4 wood beams and letting them dry. After staining, treat and protect the wood with a sealant or varnish. This will help prevent your planter posts from weathering and warping in the elements.

  2. Place the Planter in Desired Locations 

    The planter post will be too heavy to move once the concrete has been poured. Place each planter in your desired location now so you don’t have to attempt any dangerous lifting later.

  3. Secure the Post to the Planter 

    Once the wood posts have fully dried, secure them vertically in the center of the planter by drilling corner brackets to the beam and the planter box. Use one bracket for each of the four sides. 

  4. Mix & Pour Concrete into the Planter 

    Now it’s time to mix and pour the concrete. Combine all the ingredients in a large plastic work bucket and follow the directions on the bag of concrete. Once ready, pour the concrete mix into the planter until it fills the planter halfway. Let the concrete dry for 24 to 48 hours.

  5. Drill Holes for Drainage 

    Adding drainage holes to the planter will allow water to escape after rainfall, protecting the planter from rot and mildew. Use a drill and drill bit to carve out three holes on each side of the planter just above the concrete layer.

  6. Add a Layer of Stones, Soil, and Flowers 

    Not only do planter posts hold string lights, but they also provide a convenient space to grow vibrant flowers and greenery without disrupting your landscaping. 

    Add a layer of stones on top of the concrete for drainage. Make sure the rock layer sits well above the drainage holes on the sides of the planter. Then, pour in a layer of soil that reaches one to two inches below the top of the planter. 

    Transplant grown flowers into the planter, or use seeds to start from scratch.

  7. Attach the Hook Screws 

    Use hook screws to hold the string lights in place. Attach one hook screw an inch from the top of each post.

  8. Hang the String Lights

    It’s finally time to hang the string lights! Start with the planter closest to a power source. You may need to use an extension cord to keep light bulbs off of the ground. 

    Hang the string lights without the bulbs from the hook screws, creating your own pattern as you go from planter to planter. Screw in the lightbulbs after the cords are secure on the hooks to prevent glass bulbs from shattering. 

    Consider using a small zip tie around the light cord and hook screw to keep the lights secure in place, even on windy days.

DIY Planter Post FAQs

We have the answers to your most common DIY planter post questions. 

Are there other ways to hang string lights outdoors without using planters? 

Yes, there are other ways to hang string lights without using planters. Options include:

  • With a nail gun or screw hooks between trees

  • Securing the 4x4 posts directly into the ground

  • Hanging underneath a pergola 

What’s the best type of string lights to use outdoors? 

The most common type of outdoor string lights are industrial string lights, also referred to as bistro or cafe lights. Just ensure they’re labeled “for outdoor use” before purchasing. 

How do I change a blown string light?

Most packages of string lights come with one or two replacement bulbs. Simply twist the blown bulb counterclockwise (left) to remove it from the light socket. Twist the replacement bulb clockwise (right) into the socket. 

Need professional help with your project?
Get quotes from top-rated pros.
Learn more about our contributor
Kristin Salaky
Written by Kristin Salaky
Senior Editor, Angi
Kristin Salaky is a senior editor and home expert at Angi who joined the company in 2021. She’s a writer and editor obsessed with all the things that make your home feel like home.
Kristin Salaky is a senior editor and home expert at Angi who joined the company in 2021. She’s a writer and editor obsessed with all the things that make your home feel like home.
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