Do Houseplants Need Drainage Holes?

Yes, most houseplants do best in pots with drainage holes, because they let excess water escape and greatly reduce the risk of overwatering and root rot. If you want a decorative pot without holes, there are safe ways to use it.

Why do drainage holes matter?

When water cannot escape, it collects at the bottom of the pot, and roots sit in soggy soil without enough oxygen. That is the setup for root rot. Drainage holes let you water thoroughly and let the extra run out.

What if I want to use a pot with no holes?

Use it as a cachepot: keep the plant in a plastic nursery pot with drainage holes, and place that inside the decorative pot. After watering, let the water drain, then empty any that pools in the outer pot.

Can I use a layer of rocks at the bottom instead?

It is a popular tip, but it does not solve the problem. Water still collects, and the layer can raise the soggy zone closer to the roots. Real drainage holes are better.

Can I drill holes in a pot?

Many ceramic and terracotta pots can be drilled with a suitable masonry or diamond bit, going slowly and keeping the bit wet. Take care, since pots can crack.

What about the saucer?

Use a saucer to protect surfaces, and empty it after watering so the pot is not sitting in water for long.

How should I water a pot without drainage?

If you must, use very small amounts of water and check moisture carefully, but this is much harder to get right, especially for plants that dislike wet feet.

Which plants are the most sensitive?

Succulents, cacti, snake plants, and ZZ plants are quick to rot in soggy soil.

Related reading: How often should you water indoor plants?, How to tell if a plant has root rot