You want it to support and nourish your plants, often for years at a time.

But the truth is, most bagged soils just aren’t designed for this.

Here’s why and what you could do to give your indoor and container plants the best potting medium.

potting soil next to a houseplant

​The Spruce / Krystal Slagle

Unfortunately, plants rarely thrive in this kind of potting medium for too long.

With poor-quality bagged soils, plants are lucky to survive even for a few months.

This happens because purely peat-based potting mixes aren’t designed for long-term use.

closeup of peat-based soil

​The Spruce / Krystal Slagle

They’re not actually designed for plants at all, they’re made for your convenience.

They’re cheaper to produce, and they are lightweight and easy to bag and sell.

The problem is that peat decomposes quickly.

discarding old soil and starting fresh

​The Spruce / Krystal Slagle

Like any organic material, all soils decompose over time, but peat is an especially rapid decomposer.

Indoor plants also require fertilizer.

Just like outdoor plants, indoor plants also have specific soil pH requirements.

person scooping new soil into a pot

The Spruce / Krystal Slagle

Often, a slow-release fertilizer is also added.

Potting mix is a manmade mix of materials designed for potted plants.

snag the potting mix according to your plants.

pick the potting mix according to your plants.