As more gardeners look for eco-friendly alternatives to plastic pots, biodegradable pots are becoming a go-to option.

But if you've recently made the switch, chances are you've noticed a few things that feel...different.

Maybe the pots seem to dry out faster than plastic.

Maybe you've spotted mold.

Maybe you're wondering whether you're supposed to plant the whole thing or tear it apart first.

Most of these concerns come from comparing biodegradable pots to plastic pots. And that's understandable—we've spent decades treating plastic as the default way to grow plants.

But plants didn't evolve in plastic.

When you grow in a container made from natural materials, a few things behave differently. Some of those differences can feel unfamiliar at first. Others reveal just how much we've adapted our gardening habits to accommodate plastic.

Here are five of the most common misconceptions we hear about biodegradable plant pots—and what's actually happening beneath the surface.

 

Misconception #1: "Biodegradable pots are worse because they need more water."

Let's start with the big one.

Compared to plastic, biodegradable pots often do dry out more quickly.

That's because most biodegradable pots are porous. Air and moisture can move through the walls of the container rather than being trapped inside.

At first, that can feel like a downside. Nobody loves watering more often.

But the same airflow that allows moisture to escape also helps oxygen reach the root zone. Healthy roots need both water and air, and many gardeners find that plants grown in breathable containers develop stronger root systems as a result.

Think of it this way: plastic seals things in. Natural materials breathe.

Different doesn't always mean worse.

 

Misconception #2: "I need to remove the pot before planting"

The short answer?

Usually, no.

Many biodegradable pots are designed to be planted directly into the ground, allowing the roots and pot to become part of the growing process. However, not all biodegradable pots are created equal. Some may benefit from tearing or loosening before planting, while others are specifically designed to be planted whole. Always follow the manufacturer's instructions for the pot you're using.

That's why it's important to understand how the specific pot you're using is designed to function.

For example, Kelp Pots are designed to be planted whole. As the pot softens and breaks down, roots are able to grow through the container walls and into the surrounding soil. This helps reduce root disturbance during transplanting and can minimize transplant shock.

If you're ever unsure, there's a simple rule of thumb: ask yourself whether the roots can easily escape the pot.

If the answer is yes, planting the whole pot is usually the best option. If the pot feels unusually rigid, heavily compacted, or shows no signs of allowing root penetration, gently tearing the bottom or sides before planting can help roots reach the surrounding soil more quickly.

 

Misconception #3: "A smaller seedling means a less healthy plant"

 

Think tortoise and hare. A seedling in a plastic pot may appear to win the race above ground with a faster shoot, while a seedling in a biodegradable pot may be busy growing where it counts: below the soil. And when it comes to long-term plant health and yield, roots matter.

Visible growth and healthy growth aren't always the same thing.

We see a taller seedling and immediately assume it's doing better. But what's happening above the soil is only half the story.

When you pull a plant from a plastic pot, it's common to find roots circling and knotting along the inside of the container wall. That's just what happens when roots hit a barrier they can't pass through. This act of ripping tangled roots from plastic during transplant can shock the plant, which can struggle as its root system re-establishes.

Biodegradable pots create a different environment. Instead of hitting a hard stop, roots may be able to grow through the pot walls and naturally air-prune. This can lead to a denser, heartier root ball. When tranplanted, you typically bury the pot directly in the soil, meaning roots can continue exploring and growing without being disturbed.

As a result, some of a plant's most important growth may be happening where we can't see it.

A seedling in a plastic pot may appear taller today. But a plant with a larger, healthier root system is often better prepared for transplanting and long-term growth.

 

Misconception #4: "There's mold on my pot, so something must be wrong"

 

Don't panic! Some mold is normal and generally harmless. Biodegradable pots are made from natural materials, so a little surface mold is often just a sign that microbes are doing what microbes do.

The first time mold appears on a biodegradable pot, most gardeners assume they've made a mistake.

Usually, they haven't.

Biodegradable pots are made from natural materials. When moisture, microbes, and organic matter come together, decomposition begins. That's simply biology doing what biology has always done.

A small amount of white, green, gray, or even black surface mold is often harmless to the plant.

In many cases, it's a sign that the material is interacting with the living ecosystem around it rather than sitting unchanged the way plastic would.

If mold becomes excessive, improving airflow and adjusting watering habits can help. But a little mold on a biodegradable pot isn't usually a sign of failure.

It's often a sign that nature has entered the chat.

 

Misconception #5: "All biodegradable pots pretty much perform the same"

Um, not really.

Think of it like this: All dogs are dogs. Not all dogs behave the same way.

Peat pots, recycled fiber pots, coir pots, manure pots, and seaweed pots are all biodegradable, but they can behave very differently. Water retention, airflow, root penetration, decomposition speed, and durability vary significantly depending on the material.

We chose seaweed for a couple reasons. It's a rapid, renewable resource. It naturally binds materials so there is no need for additives or glues. Kelp fibers in the pot walls expand when watered, alowing roots to pass through easily. Finally, kelp is a unique source of bioactive compounds and polysaccharides that support plant growth and resilience. 

The bigger point, though, is this:

"Biodegradable" isn't a material. It's a category.

Just like not all dogs behave the same way, not all biodegradable pots perform the same way. The material matters.

And that's why it's worth looking beyond the label and understanding what your pot is actually made from.

 

Why more gardeners are choosing biodegradable and eco-friendly pots

For decades, plastic has been the default container for growing plants.

It's inexpensive. Durable. Familiar.

It's also a material that can outlive the plant it helped grow by hundreds of years.

Biodegradable plant pots offer a different approach.

Not because they're perfect. Not because they're magical. But because they invite us to rethink one of the most overlooked parts of gardening: the container itself.

Whether they're made from recycled fiber, agricultural byproducts, seaweed, or other natural materials, eco-friendly pots are gaining popularity for a simple reason: they're designed to work more closely with natural growing systems.

You may water differently. You may notice roots behaving differently. You may even see a little mold from time to time.

That's okay.

Many of the things we've come to think of as "normal" gardening practices are really just adaptations to growing plants in plastic.

And once you start growing in materials that behave more like nature, some of those assumptions begin to change.

That's not a problem.

That's the point.

💚

 

Frequently Asked Questions about biodegradable plant pots

Do biodegradable plant pots really break down?

Most do, though the speed depends on the material and growing conditions.

 

Should I remove a biodegradable pot before planting? 

It depends on the pot. Some are designed to be planted whole, while others may need to be loosened or removed.

 

Why is mold growing on my biodegradable pot?

A small amount of mold is often normal and usually indicates that moisture and microbes are interacting with the pot's natural materials.

 

Are biodegradable pots better than plastic pots?

Each has advantages, but biodegradable pots can reduce transplant disturbance and eliminate waste.