Easily Add Drainage Holes to Your Planters for Healthier Plants

As an indoor gardening enthusiast, I understand the annoyance of finding a planter that’s perfect for your space but lacks a vital feature: a drainage hole.

When growing plants in pots, having drainage is crucial. Even if you use gravel for drainage, a dedicated hole allows excess water to escape, minimizing the risks of root rot and fungal diseases.

Fortunately, if your chosen planter doesn’t have a drainage hole, there’s no need to return it. Gardening experts share simple methods to create drainage holes in various planter materials.

Ways to Create Drainage Holes in Planters

Watering container plants requires care. Excess moisture can lead to root rot, making drainage holes essential.

While many planters, like these terracotta pots available on Amazon, include drainage holes, not all do.

If your ideal planter has a solid base, consider these techniques to add drainage holes.

Before starting, determine the size of the hole; around one inch is standard, but smaller works too.

You'll need some essential tools for this DIY task, including safety gear to protect yourself:

A power drill, like this cordless drill from Amazon.
Safety goggles (available at Walmart).
Safety gloves (from Amazon).

1. Creating Drainage Holes in Terracotta Pots

Terracotta pots have several advantages, with their porous nature allowing moisture management and root health, making them ideal for indoor plants.

Though already beneficial, adding a drainage hole enhances their effectiveness. Luckily, this process is straightforward.

“Clay pots are easy to drill since they’re soft. Soaking the pot for an hour or overnight reduces the chance of cracking,” says a gardening expert.

For soaking, you might use this bucket from Walmart.

“I recommend using a diamond drill bit from Amazon. Tape the spot to stabilize the drill, start small, and gradually increase the hole size,” the expert advises.

Once finished, remove the tape and clean any debris. You may also want to add a drip tray (available on Amazon), particularly for indoor use.

2. Creating Drainage Holes in Plastic Pots

fiddle leaf fig in white pot on stool next to sofa

“Plastic pots are the easiest to modify for drainage,” the expert states.

You can drill holes, but for thinner planters, a heated nail may work to melt holes instead. Just ensure you’re in a well-ventilated area when doing this,” the expert adds.

For thicker pots, cutting a hole with scissors from Walmart is an option, but wear gloves for safety.

Be cautious of sharp edges around the new hole; using this sandpaper from Amazon can smooth them out.

Alternatively, avoid rough edges by “running the drill counter-clockwise, which prevents burring,” the expert notes.

3. Creating Drainage Holes in Ceramic Planters

orange california poppies in ceramic pot

Ceramic planters are stunning and complement any garden aesthetic. However, they can be more challenging when adding drainage holes.

With patience, you can achieve this without damaging the pot.

“Use a diamond or masonry drill bit, and proceed slowly to prevent cracks,” the expert advises. “I keep the area cool by using a spray bottle from Amazon while drilling.”

Start by marking the spot with masking tape and, similar to clay pots, gradually increase the hole size.

“Drilling from both sides can help prevent cracks,” the expert adds.

Do Planters Need Drainage Holes?

While not all planters need drainage holes, having one is highly beneficial. It helps excess water escape, preventing plants from sitting in overly wet soil, which can lead to root rot. Additionally, drainage holes facilitate bottom watering techniques, ideal for plants that prefer consistent moisture.

Now that you've added drainage holes, consider learning how to fill the bottom of planters and tips for keeping terracotta pots clean. Also, check out common container gardening mistakes to ensure success in your planting endeavors.