Do Planters Need Drainage Holes?

October 25, 2026

Cream planter showing its drainage hole next to a saucer and a monstera in a nursery pot

Yes, for almost all houseplants planters need drainage holes. A hole lets extra water escape so roots are not left sitting in soggy soil, which leads to root rot. A layer of gravel is not a substitute. If you love a pot with no hole, use it as a cover over a plain pot that drains.

Key Takeaways

Drainage holes prevent water from pooling around roots and causing rot.
Gravel or rocks at the bottom do not improve drainage and can make soil wetter.
The safest way to use a pot without a hole is the pot-in-pot (cachepot) method.
Always empty saucers and cover pots after watering.
Only a few setups, like closed terrariums and water propagation, work without drainage.

Why do planters need drainage holes?

Roots need both water and air. When you water a pot with a drainage hole, the excess flows out, and air is drawn back into the spaces between soil particles.

In a pot without a hole, the extra water has nowhere to go. It collects at the bottom, and the roots sitting in that zone are starved of oxygen. Over time they start to decay, which is what we call root rot.

The University of Nebraska–Lincoln Extension describes drainage holes as essential for both clay and plastic pots (Nebraska Extension). NC State Extension likewise advises choosing a pot with drainage holes when repotting (NC State Extension).

What happens if a pot has no drainage hole?

A plant can survive for a while in a sealed pot, especially if you water sparingly. The problem is that you cannot see the water level, so it is easy to let it build up without noticing.

Common signs of trouble include:

Lower leaves turning yellow and soft.
Wilting even though the soil is wet.
A sour or musty smell from the soil.
Fungus gnats hovering around the pot.
Brown, mushy roots when you check.

Salts from fertilizer and tap water also build up in pots without drainage, because they are never flushed out. That can burn leaf tips over time.

Does putting gravel in the bottom of a pot help drainage?

No. It is one of the most common houseplant tips, and it does not work. Water does not move easily from fine-textured potting mix into a coarse layer of gravel below it.

Washington State University Extension horticulturist Linda Chalker-Scott explains that gravitational water will not move from finer soil into coarser material until the finer soil is saturated, as summarized by Extension Master Gardeners in Northern Virginia (Master Gardeners of Northern Virginia). NC State Extension makes the same point: gravel reduces drainage rather than improving it (NC State Extension).

In practice, a gravel layer simply raises the soggy zone higher in the pot, closer to the roots. It also takes up space that roots could have used.

How can I use a pretty pot that has no drainage hole?

You have three good options. The first is by far the easiest.

Option 1: The pot-in-pot (cachepot) method

Keep the plant in a plain nursery pot or plastic liner with drainage holes.
Choose a decorative pot slightly wider and taller than the nursery pot.
Set a small riser, an upturned saucer, or a layer of pebbles in the bottom of the decorative pot so the inner pot sits above any runoff.
To water, lift the inner pot out, water it in the sink until water drains from the bottom, and let it finish dripping.
Return it to the decorative pot. If you water in place, check for pooled water afterward and pour it off.

Option 2: Drill a hole

Many unglazed terracotta and some ceramic pots can be drilled with a diamond or tile bit. Go slowly, keep the bit wet, and use painter's tape over the spot to stop it slipping. Wear eye protection. Glazed and thin pots can crack, so this carries some risk.

Option 3: Water very carefully

If you plant directly into a sealed pot, give small amounts of water and check moisture deep in the soil before watering again. This is the riskiest option and is best kept for drought-tolerant plants such as succulents and snake plants.

Which setups work without drainage holes?

Setup	Works without a hole?	Why
Regular potted houseplant	Not recommended	Water pools and roots rot
Cachepot over a draining pot	Yes	The inner pot drains; you empty the outer one
Closed terrarium	Yes, with care	Very little water is added; moisture recycles inside
Water propagation vessel	Yes	Cuttings are meant to sit in water
Self-watering planter	Uses an overflow hole instead	A reservoir and wick control moisture

Terrariums and propagation stations are designed around little or no drainage. Explore them in our terrariums and propagation collection, and learn more in our guide on how self-watering planters work.

How do I protect floors from a pot with drainage holes?

A drainage hole means water will come out, so plan for it.

Use a saucer that is wider than the pot base, and empty it within about half an hour of watering so the pot does not sit in water.
Add pot feet or a riser to lift the pot slightly so air can circulate and the saucer can drain.
Use a plant stand with a solid tray top if you are worried about wood floors.
Water in the sink or shower for smaller plants, then return them once they have drained.

Our plant stands and shelves collection includes stands that work well with saucers.

Should I cover the drainage hole?

You can place a small piece of mesh screen or a coffee filter over a large hole to keep potting mix from washing out. Colorado State University Extension suggests this approach when repotting (CSU Extension). Just make sure whatever you use lets water through freely. Do not block the hole with a solid object.

How do I choose a planter with good drainage?

Look for at least one hole in the base, and preferably a pot that comes with a matching or well-fitting saucer. Wide, open holes drain better than tiny pinholes.

Browse planters and pots with drainage built in, and see our full guide on how to choose pots for plants for help with material and size.

Shop the products in this guide

Oval Succulent Bowl Planter, Wide Stoneware – A wide stoneware bowl with a drainage hole to keep roots healthy.
Wicker Planter Basket, Handwoven Willow with Liner – A lined basket that works as a cachepot over a draining nursery pot.
Bamboo Plant Saucer Tray, Round, Square, Hexagon or Oval – A tray under the pot helps protect shelves and windowsills from runoff.
Large Planter 16", Terracotta Look Resin Floor Pot – A large floor pot with a built-in drainage hole.

Frequently Asked Questions

Can succulents live in pots without drainage?

They can survive with very careful watering, but they are especially prone to rot in soggy soil. A pot with a drainage hole, or a cachepot setup, is much safer.