Once the reservoir of your planter is filled to capacity, water will start seeping out of the overflow drain hole. Always make sure there is a clear passageway out of the drainage hole to ensure water can escape.
This overflow drainage hole is manufactured/pre-drilled in all of our window boxes and Patio Planters.
Our Tall Planters require you to drill your own drainage hole. The hole is not pre-drilled in our tall planters so they can be used indoors if you would like.
Window Box Overflow Drain Hole
Patio Planter Overflow Drain Hole
Tall Planter Drainage Hole Placement