Drainage holes are essential in plant pots because they allow excess water to escape from the soil, preventing waterlogging and root rot. Healthy plant roots require both moisture and oxygen, and proper drainage ensures the root system remains aerated and balanced.

Without drainage holes, water accumulates at the bottom of the pot, which can suffocate roots and lead to fungal diseases.

Key benefits of drainage holes:

• Prevent root rot

• Improve soil aeration

• Support healthy root development

• Reduce fertiliser salt build-up

• Promote stronger plant growth

For optimal plant health, always use pots with drainage holes and well-draining substrate, especially for houseplants, succulents and rare collector plants.

What happens if a plant pot has no drainage holes?

Without drainage holes, water collects at the bottom of the pot. This creates overly wet soil conditions that can cause root rot, fungal diseases and poor plant growth.

Can I grow plants in pots without drainage holes?

It is possible but not ideal. If using decorative pots without holes, plants should be placed in a separate inner pot with drainage to protect the roots from standing water.

Do succulents and cacti need drainage holes?

Yes. Succulents and cacti require excellent drainage, as their roots are extremely sensitive to excess moisture. Pots without drainage can quickly lead to root rot.

Is a drainage layer of stones necessary?

Modern horticulture shows that stones at the bottom of pots do not significantly improve drainage. Instead, using a well-structured soil mix and a pot with drainage holes is more effective.