Do Indoor Herbs Need Drainage Holes?

You can grow herbs in a decorative container without holes, but the safest method is to place the herb in a draining nursery pot and use the decorative container as a cover pot. This gives you the appearance you want without forcing the roots to sit in standing water.

Why Drainage Holes Matter for Indoor Herbs

Herb roots need both moisture and air. When soil stays saturated, water fills the spaces that normally hold oxygen. Roots can then become stressed, stop functioning properly, and eventually rot.

Drainage holes help by allowing you to:

• Water the entire root ball thoroughly.
• Flush excess water and accumulated fertilizer salts from the soil.
• Prevent water from collecting around the roots.
• Check whether the soil is draining properly.
• Reduce the chance of overwatering.

The important point is that overwatering is not only about how much water you use. It is also about how long the soil stays wet. A draining pot makes moisture management much easier, especially for beginners.

For more guidance on choosing a well-draining growing medium, see our guide to best soil for indoor herbs.

Basil, parsley, cilantro, mint, thyme, oregano, rosemary, and lavender generally perform better when excess water can drain away. Herbs vary in their moisture preferences, but few indoor culinary herbs benefit from permanently waterlogged soil.

For basil-specific container and drainage guidance, see How to Grow Basil.

The Best Setup: Inner Pot and Saucer

A practical indoor herb arrangement is:

1. Plant the herb in a nursery pot with drainage holes.
2. Place that pot inside a slightly larger decorative container.
3. Water the herb at a sink or over a tray.
4. Allow excess water to drain completely.
5. Empty any water collected in the outer container.
6. Return the inner pot to the decorative pot.

This is often called double potting or using a cover pot. It works particularly well for indoor kitchens, windowsills, and countertops because the outer pot protects surfaces while the inner pot provides proper drainage.

If you are growing oregano indoors, its care guide also explains why a well-draining container matters: How to Grow Oregano.

A pot with drainage holes and a saucer is another excellent option. Choose a detachable saucer rather than one permanently attached to the pot, because it is easier to empty after watering. Never let the inner pot sit in a saucer full of water for long periods.

Do You Need a Saucer?

A saucer is not a replacement for drainage holes. It simply catches water that leaves the pot.

Use a saucer when:

• The herb sits on a wooden shelf, windowsill, or countertop.
• You water the plant in place.
• The container has one or more holes in its base.
• You want to protect indoor surfaces from water stains.

After watering, wait until the flow slows, then empty the saucer. A permanently wet saucer can keep the lower portion of the soil saturated.

For small herbs, a shallow saucer is usually enough. Make sure the pot is not sitting in a deep pool of water.

How Big Should Drainage Holes Be in Planters?

For small indoor herb pots, drainage holes should be large enough to let water escape freely without washing out the potting mix.

As a practical guide:

The exact size is less important than having enough open drainage area. Several small holes can work better than one very large hole because they distribute drainage across the bottom.

The holes should not be blocked by a compacted layer of soil. If the pot has only one tiny hole, water may drain slowly, especially when the potting mix is dense.

Thyme is another herb that benefits from fast-draining soil and careful watering; see How to Grow Thyme.

Avoid making large holes in thin plastic pots unless necessary, because the base may crack or lose structural strength.

What If Your Herb Pot Has No Hole?

You have three practical choices.

Use a nursery pot inside it

This is the safest and easiest solution. Keep the herb in a plastic or terracotta pot with drainage holes, then place it inside the decorative container.

Remove the inner pot before watering, or check afterward that no water remains in the outer pot.

Drill a drainage hole

Plastic, resin, terracotta, and ceramic containers can often be modified, but the correct tool depends on the material.

• Plastic and resin usually need a suitable drill bit and steady pressure.
• Terracotta can often be drilled carefully with a masonry or tile bit.
• Ceramic requires extra caution because it may crack.
• Wear safety glasses and work slowly.
• Keep the container supported on a stable, padded surface.

Guides on drilling planters recommend using the appropriate bit for the material, securing the planter, and taking care with heat and cracking when drilling ceramic.

If you are not comfortable drilling an expensive or sentimental pot, use an inner pot instead.

If you prefer starting herbs from cuttings, this guide also recommends a small pot with drainage holes and a well-draining mix: How to Grow Herbs From Cuttings.

Water very carefully

This is the least reliable option. If you keep an herb directly in a container without drainage holes:

• Use a loose, well-draining potting mix.
• Water only when the plant and soil actually need it.
• Add a small amount at a time rather than following a fixed schedule.
• Never leave visible water pooled at the bottom.
• Monitor the plant closely for declining health.

Even careful watering cannot remove excess water once it accumulates below the root ball.

How to Water Herbs in Pots With Drainage Holes

For most indoor herbs, water thoroughly rather than giving frequent small sips.

1. Check the soil first with your finger or a moisture meter.
2. Water slowly across the soil surface.
3. Stop when a little water drains from the bottom.
4. Let the pot drain fully.
5. Empty the saucer or outer container.
6. Wait until the upper portion of the soil has dried appropriately before watering again.

The drying point depends on the herb. Rosemary, thyme, oregano, and lavender generally prefer more drying between waterings. Basil, parsley, cilantro, and mint usually prefer more consistent moisture, but they still should not sit in standing water.

Light, temperature, humidity, pot size, soil type, and plant size all affect how quickly a container dries. A calendar-based watering schedule is less reliable than checking the soil.

For another example of container drainage and watering needs, see How to Grow Cilantro.

Signs of Poor Drainage

Watch for these warning signs:

• Yellowing leaves despite moist soil.
• Black or soft stems near the soil line.
• A sour or swampy smell from the pot.
• Fungus gnats around persistently wet soil.
• Wilting even though the soil is damp.
• Slow growth or sudden leaf drop.
• Roots that are brown, soft, or unpleasant-smelling.

Wilting does not always mean a plant needs water. Roots damaged by excess moisture may be unable to absorb water, causing a plant in wet soil to look thirsty.

If your growing space also has limited natural light, see 11 Best Herbs That Grow in Low Light Apartments for additional indoor-growing options.

If the problem is caught early, move the herb into a draining container with fresh, suitable potting mix. Remove visibly damaged roots with clean scissors and correct the watering routine.

Do Succulents Need Drainage Holes?

Yes. Succulents generally benefit even more from drainage holes because their roots are adapted to periods of drying rather than constantly wet soil.

A succulent can sometimes survive in a container without a hole when the mix is extremely mineral and the grower waters very carefully. However, a draining pot remains the safer option.

For more ideas on herbs suited to indoor container growing, see 25 Culinary Herbs You Can Easily Grow Indoors.

Use:

• A pot with drainage holes.
• A gritty, fast-draining succulent mix.
• A container only slightly larger than the root ball.
• Thorough watering followed by a drying period.

Self-watering containers are usually not appropriate for succulents because they maintain a more consistent moisture supply than these plants typically need.

Frequently Asked Questions

Bottom Line: Indoor herbs usually do best in pots with drainage holes. The simplest setup is a nursery pot with holes placed inside a decorative cover pot, or a draining pot used with a detachable saucer.

Drainage holes do not prevent every watering mistake, but they give excess water a way out and make healthy watering much easier. For beginners and for herbs such as lavender, rosemary, thyme, and oregano, they are one of the most useful safeguards against root problems.