Should You Put Rocks in the Bottom of a Planter?

Short answer: No, you shouldn’t.

It’s a common gardening myth that placing rocks at the bottom of a planter improves drainage. However, this practice actually does more harm than good.

Why You Shouldn’t Use Rocks for Drainage

• Doesn’t improve drainage: Rocks actually restrict water flow, causing it to pool at the bottom of the planter. This can lead to root rot and other plant diseases.   
• Takes up valuable soil space: By filling the bottom of the planter with rocks, you’re reducing the amount of soil available for your plant’s roots to grow in.   
• Can harbor pests and diseases: Rocks can trap moisture and create a breeding ground for bacteria and pests.

How to Improve Drainage in Your Planters

• Choose the right planter: Select a planter with drainage holes at the bottom.
• Use a well-draining potting mix: A high-quality potting mix will allow excess water to drain quickly.
• Don’t overwater: Overwatering is a common cause of root rot. Water your plants only when the top inch of soil is dry.   

In conclusion, there’s no need to add rocks to the bottom of your planters. In fact, it can be detrimental to your plants. By following these simple tips, you can ensure that your plants have the best possible growing conditions.