Window, porch and patio planter flower boxes made of durable PVC. Far lighter than wood with an extra deep design and internal water-minderTM insert to promote healthy plant growth. Custom lengths are available on a special order basis. Easy to paint with most latex or oil based paints.
STANDARD SIZE:60"L x 9.75"W x 10.75"H Includes (2) Bracket Pair
Our Royal Flower Boxes and Patio Planters house a unique, yet elaborate
water-minder feature that prevents root rot and provides a water
reservoir. The small holes on the inside floor of the planter allow the
water to collect in a reservoir in the bottom of the planter and return
The reservoir holds about a half gallon of water per linear foot of
planter, so a 36” box will hold up to a gallon and a half of
water in its tank. The small holes in the bottom of the two saturation
ribs running the length of the inside of the planter are not drainage
holes and are not for external drainage. They allow the water to flow
back and forth between the reservoir and the saturation ribs to help
stabilize the moisture in the planter. The soil or medium in the
saturation ribs becomes saturated with water from the reservoir and
transfers that moisture throughout the planter by capillary action.
There are no drainage holes in your Royal Vinyl flower box planter in
case you wish to use it indoors where any leakage would be undesirable.
Most people will be using their Royal Window Box outdoors where
watering from a rainstorm is uncontrollable. In this situation, you
need to drill drainage holes in the bottom of the planter. Turn the
planter upside down and drill the holes from the bottom into the rib
that runs up the center of the flower box planter. Holes should be
about 3/8 inch in diameter and about six inches apart, all the way
through both the inner and outer skins of the planter. Do not drill
drainage holes anywhere else in the bottom of the planter other than in
the depression down the centerline of the planter. Doing so will defeat
the benefits of the water reservoir by draining it.