DIY – Pallet Box Planter

Cascading Flower Pallet Box Planter

How to built a large pallet planter box out of old pallets

Cut List

  • 4 - 2" x 4" x 40" - legs
  • 2 - 2" x 2" x 15" - bottom support
  • 4 - 1" x 4" x 36" bottom
  • 1 - 1" x 1 1/2" x 36" bottom
  • 40" long pallet slats as needed
  • 16" long pallet slats as needed

DIY - Pallet Box Planter

Step 1

This planter box is made mostly from pallet wood.
Measure and mark down 20" from the top of the legs.  Attach the 2x2 at 20" with 2 1/2" screws.  Repeat for the other set of legs.

DIY - Pallet Box Planter

Nail or screw the bottom pieces to the 2x2 supports.



Step 2

Cut pieces of pallet slat to 40" and attach to the legs for the front and 16" for the sides.  I originally used a brad nailer, but some of the wood started to warp when wet and I went back and used 1 1/4" screws.


I used a 2" hole saw (affiliate) to drill holes for the petunias.

DIY - Pallet Box Planter

Spacing the holes about every 6" or so.

DIY - Pallet Box Planter

DIY - Pallet Box Planter

Step 3

Now the fun part, planting the flowers. These flowers are Wave petunias that I got at Costco, you can also rotate the flowers between regular, cascade and wave petunias. You need good potting mix and you need to add soil moist (affiliate) to help retain water. I put a layer of weed guard down on the bottom, because I had a few holes

DIY - Pallet Box Planter

Add the first row of flowers, then cover with soil.

DIY - Pallet Box Planter

I realized that the box is kind of large and is going to use a lot of dirt (2 bags). I remember reading somewhere that you can use packing peanuts as filler, hope I remember that right. I put them in the far back where the flowers wouldn't be planted.

DIY - Pallet Box Planter

Then cover with more dirt.

DIY - Pallet Box Planter

Add the third row of flowers, fill with dirt and plant flowers on top.

April 13 - first planted

DIY - Pallet Box Planter

May 20 - starting to grow

DIY - Pallet Box Planter

June 6 - filling in nicely

June 6 - filling in nicely

September 22

By this time I'm super excited it made it through the summer alive.  I never made it through July with the baskets on the back deck.

Sprayed it for bugs one last time, and one week later it looked amazing!  Here is the result of the flower box in late September, gorgeous!

September 29 - Amazing!


I can't wait for next year! I think I'll add a few more variations of plants next time. What are your favorite cascading plants?

DIY - Pallet Box Planter

Images and project by: Her Tool Belt
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