About Large Box Planters
Fill a two-metre box with wet potting mix and the soil pushes outward along the whole length of the long sides. That steady push is what pulls a long planter out of shape, and it is why every size here is built with reinforcement running both across and down through the sidewall. The long panels stay plumb and straight as roots fill the profile. The clean straight-sided shape then does honest work along a courtyard perimeter, a commercial streetscape, or the edge of an alfresco dining zone, where holding a straight line matters more than any silhouette.
Polystone Resin gives these containers the visual weight and tactile feel of carved masonry without the handling weight of solid precast concrete, which matters when one has to come through a side gate or up a flight of stairs. The composite is water-resistant in itself, so there is no internal sealer to paint on before soil goes in. Where feet are moulded into the base, they lift the floor of the pot clear of the pavement and leave an open air gap underneath: the drainage holes stay open and moisture does not sit beneath the base.
Stock sizes run 200 x 50 x 50, 150 x 50 x 50, 100 x 50 x 50 and 50 x 50 x 50, which covers most runs without anyone having to improvise. When a planter has to meet joinery or fill an exact opening, we manufacture to your project dimensions, so send the measurements through with the setting-out. View the Polystone Resin collection for the rest of the family, or contact us about a product or project to talk through custom fabrication and trade supply.
Common questions
Which screening plants work in the 200 x 50 x 50?
At 50 cm wide and 50 cm deep there is enough soil for dense hedging species. Syzygium (lilly pilly), clumping bamboo (Bambusa gracilis), Viburnum tinus and pleached ficus all root strongly in this profile and knit together into a screen that softens noise as well as sightlines along a suburban boundary fence.
Why does the reinforcement run in two directions?
Wet potting mix in a container spanning 200 cm puts a real outward push on the long faces. Reinforcement bands set into the Polystone, running across and down, take that load and keep the long sides from bowing outward over the years.
Do the moulded feet make a difference on paving?
They do. Where they are included, the feet hold the underside off the pavement and keep a continuous air gap there, so the base drainage holes never seal themselves against smooth stone or concrete. Standing water stays off alfresco tiles, and after heavy rain the runoff clears quickly instead of pooling under the pot.
