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Window Boxes

Planting Up

Step 2: Drill holes for drainage

Glue small pieces of wood onto the bottom of the box to ensure good air circulation.
Drill holes in the bottom of the box for drainage.
Treat with wood preservative.

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Step 3: Fixing the box on a sill

It's important to fix a window box securely - a falling window box can cause serious injury. If you have a wide sill, secure the box with angle brackets at the side fixed with rawlplugs. Use brass screws and fix feet underneath for air circulation and free drainage.

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Step 4: Fixing the box under a sill

If your sill isn't wide enough to accommodate a box - or if your window opens outwards - fit the window box under the sill.
Fit spacers on the back of the window box and use long screws to fix the spacers into the wall with rawlplugs. Add supporting brackets underneath screwed into the wall and the box.