For small to medium planters (4” – 12” in diameter) it’s good to drill a couple of holes that are no larger than ½ of an inch. For larger planters, 16” and up, drill a couple of holes that are at least an inch in diameter.
Besides, should all plant pots have drainage holes?
Why Do Pots Need Drain Holes? … Plants in pots without drainage holes are prone to becoming overwatered. Even if the soil surface appears dry, the soil at the bottom of the pot may be sopping wet. Waterlogged soil can lead to root rot, a serious condition that can easily kill your plants.
Similarly, how big should my drainage hole be?
Avoid very small drainage holes since they often get clogged. You want large drainage holes; an inch in diameter is a good place to start. You can put drainage holes in almost anything by using a drill with the proper bit or a hammer and large nail. Put in as many holes as possible.
Do I need to put rocks in the bottom of a planter?
This is false. Putting gravel, rocks, or other layers of material in your plant pots, planters, or containers with drainage holes does NOT improve potting soil drainage, it instead increases the water saturation level that leads to root rot.
A: For years, experts told gardeners to put a layer of gravel, pebbles, sand or broken pieces of pot in the bottom of the pot before potting up houseplants or outdoor plants. The idea was to improve drainage. But research shows that this advice is wrong. Water doesn’t travel well from one medium to another.
A wooden planter should have drainage holes in the bottom to prevent water-logged soil. If the holes are too large, though, some of the soil itself may be washed out of the container, so cover the bottom of the planter with landscaping fabric to prevent soil loss.
A wooden planter is a great way of creating a bed to grow plants and vegetables in if you are short of space. … Make sure your wooden planter has drainage holes, so plants don’t become waterlogged.