Plant receptacles need to have adequate drainage so that the foliage planted in them will not develop root rot or “drown.”
For outdoor use, place live plants in containers with drainage holes. The water will flow through the containers, keeping the plants safe from over-watering. Additionally, the drainage will stop water from pooling in the pots and keep them from freezing during the winter. Frozen water will expand and crack the receptacles.
Furthermore, when placing urns on top of pedestals outdoors, we recommend installing drainage holes in the pedestals as well—especially if the pots will be connected to an automatic watering system. Consequently, the tubes coming out of the side of the pot will be hidden. In residential installations, however, many homeowners prefer to hand water their plants. In these cases, pedestal drainage holes aren’t necessary. However, we recommend that all pedestals holding planters with live foliage have holes.
On the other hand, for those wanting to use the urns and planters indoors, we advise that they NOT have drainage holes to avoid leaking onto inside floors. In these instances, there is a nominal charge for PLUGGING and sealing the pieces. The most practical way to water these plants is to house the plants in containers that can be easily removed for watering, and then place back in the urns.
Plant It and Leave It.
Archiped’s slogan is “Plant It and Leave It,” and that applies to drainage. No rocks needed, no special soil, just “Plant It and Leave It”.