This is a practical question. I'm working on some raised bed gardens that are very overgrown with tree roots. I've been told to line the outside of the boxes about 2' down with siding and since tree roots are mostly near the surface, that should stop them from invading the beds.

Question

This is a practical question. I'm working on some raised bed gardens that are very overgrown with tree roots. I've been told to line the outside of the boxes about 2' down with siding and since tree roots are mostly near the surface, that should stop them from invading the beds.

Looks like siding can be steel, masonry, vinyl, wood, or composite. Since the beds will be used for vegetables, I'd like to use a material that won't decompose and that will hold up to being shoved into the earth. Any suggestions?

Thanks from Sheryl

Answer 1

Vinal siding works ok, as does heavy duty landscape fabric...however both require the dirt to be moved or a trench dug...one can't shove them in. Trenching machines work great, you might check rental cost.

Yes, two feet down is adequate for several years (except for some invasive trees, such as Chinese Tallow).

I don't recommend wood, as you would need treated (with cyanide or such) wood, which does leach out over time.

This is spring or fall work, heavy digging, unless you rent a trencher. Have you discussed this with your local garden club, or county agricultural agent? That advice, although free, is very valuable.

Answer 2

The local hardware store and a master gardener suggested the siding solution but it sounds like that is even temporary. No one liked the landscape fabric as a solution because it won't stop roots.

Thanks for the input.

Sheryl

Answer 3

Hello Sheryl! When it comes to choosing a material for lining your raised bed gardens to prevent tree roots from invading, you have a few options that are durable and suitable for vegetable gardens. Here's how you can make an informed decision:

1. Steel: Steel siding is highly durable and won't decompose. However, it may be difficult to work with and might require specialized tools for installation. You can consider using galvanized steel panels, which are resistant to rusting.

2. Masonry: Using bricks or concrete blocks as a lining material can be effective in stopping tree roots. However, it can be labor-intensive to install and requires some masonry skills.

3. Vinyl: Vinyl siding is a popular choice for its durability and ease of installation. It is resistant to rotting and won't decompose. Look for thicker vinyl siding options for added strength.

4. Wood: While wood can decompose over time, you can choose rot-resistant wood options such as cedar or redwood. These types of wood are known for their durability and natural resistance to decay.

5. Composite: Composite materials, such as recycled plastic or wood-plastic composites, can be a good long-term option for raised bed garden lining. They are resistant to rotting, don't require maintenance, and can be easily worked with.

To make the final decision, you should consider factors such as cost, availability, ease of installation, and personal preference. Additionally, consult with local gardening experts or visit nearby garden centers for advice specific to your region's climate and conditions.