DIY Network

How to Build a Wall Planter Box

Learn how to soften an outdoor wall by hanging a planter box.

More in Outdoors

  • Time

    Under Half Day

  • Price Range

    $250 - $500

  • Difficulty

    Easy to Moderate


Step 1: Cut the Wood

Cut 45-degree angles on each corner.

Step 2: Construct the Box

Use wood glue or construction adhesive to join each corner together. Use a finishing-nail gun to secure them. To reinforce the corners of the planter box, use a table saw to cut pieces of 1" x 6" (or 1" x 12") cedar down to strips of 3/4 x 1/2 inches (Image 1). Use construction adhesive to secure in each corner (Image 2), and your planter is ready to go.

Step 3: Secure the Box to the Wall

Use a cordless hammer drill with a hex bit to secure concrete screws into the stone work.

Step 4: Add the Plants

Regal geranium
Pelargonium domesticum
Regal geraniums produce large flowers about 2 to 5 inches across but stop blooming when nighttime temperatures get above 60 degrees. In many climates, best flowering occurs in spring and fall. The flowers are usually bi-color.
Regal geraniums prefer some afternoon shade in hot summers.

Licorice plant
This plant is grown for its velvet like foliage.
Most licorice plants have silvery foliage, but they can have lime green foliage
It grows about 18 to 24 inches high
It's used as an annual but in zones 9 and 10 is a perennial
Maintenance tip: Do not over-water. They rot with wet feet

Wax begonia
Wax begonias are grown for their colorful, waxy foliage and flowers that bloom from summer through to first frost.
It prefers sun, but the foliage can burn in intense sun. Give it part shade in warm climates.
It is a perennial in USDA Zones 9-11 and used as an annual elsewhere.

Additional container
Jason used a container near the garage to help further soften the look of the garage. We used a very heavy container that will not "walk away" in this busy urban neighborhood.
The container plants include the following:

Heliotropium arborescens
This annual is known for its fragrance, which is comparable to cherry pie. Its flowers can be blue, violet or white.
It grows about 18 to 36 inches high.
It prefers sun to part shade.

Cuban oregano
Plectranthus amboinicus

The foliage of this colorful plant resembles coleus. It's used as a culinary herb in Cuban and Spanish cooking.
It's a perennial in USDA Zones 10-11 and used as an annual (often in containers) elsewhere.
It prefers full to part sun.

Dwarf fothergilla
Fothergilla gardenii
Fothergilla is a low-maintenance, deciduous shrub that produces fragrant white flowers in April and May.
It grows about 2 to 3 feet tall and 2 to 4 feet wide.
It prefers full sun to part shade.
Native to southeastern U.S.
USDA Zones 5-8

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Desperate Landscapes

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