Essential Tips: Choosing the Perfect Lining for Your Raised Garden Beds

What to Line Raised Garden Beds With: A Complete Guide

Raised garden beds are a popular and effective way to grow plants, vegetables, and herbs in limited spaces or areas with poor soil quality. One crucial aspect of building a successful raised garden bed is choosing the right material to line it with. In this comprehensive guide, we will explore different options for lining your raised garden beds and discuss their benefits and drawbacks.

Why Line Your Raised Garden Bed?

You might be wondering why lining your raised garden bed is necessary in the first place. Lining serves several important purposes:

  • Weed Prevention: Lining helps prevent weed growth from infiltrating your raised bed’s soil.
  • Pest Control: It acts as a barrier against burrowing pests like moles or gophers that can damage plant roots.
  • Moisture Retention: The right liner can help retain moisture within the soil, reducing water loss through evaporation.
  • Soil Protection: A well-chosen lining material prevents leaching of chemicals from treated wood or contaminants present in the ground below.

Fabric Liners

Fabric liners are an excellent option for lining raised garden beds. They provide adequate drainage while still preventing weeds from growing through them. Some popular fabric liner choices include landscape fabric and geotextiles specifically designed for gardening purposes.

Landscape Fabric

Landscape fabric is widely available and often used as a weed suppressor in gardens. To use it as a liner, you simply cut it according to the size of your garden bed before laying it down on top of any existing vegetation or grass. Ensure the fabric covers the entire bottom and sides of the bed, overlapping at the corners to avoid gaps that weeds might exploit.

Remember to cut holes in the fabric for drainage if your raised garden bed doesn’t have sufficient drainage built into it. This will prevent water from pooling and potentially drowning plant roots.


Similar to landscape fabric, geotextiles are specialized fabrics designed specifically for use in gardening applications. They offer superior weed suppression, exceptional drainage capabilities while still retaining moisture within the soil. Geotextiles can be more expensive than traditional landscape fabric but may provide enhanced durability and longer lifespan.

Liners Made of Plastic

Plastic liners provide an effective barrier against weeds and also help retain moisture within your raised garden bed’s soil. However, they do not allow for proper drainage unless perforated with small holes at regular intervals along their surface.

Polyethylene Sheeting

Polyethylene sheeting is a popular choice among gardeners due to its affordability and widespread availability. To use this liner effectively, you’ll need to puncture it with multiple small holes (around 1/8 inch) evenly spaced across its surface before placing it on top of your prepared garden bed area.

The perforations ensure proper drainage while still preventing unwanted weed growth through gaps between plants or along seams where sheets overlap.

Biodegradable Plastic Liner

If you’re concerned about sustainability, biodegradable plastic liners are worth considering for your raised garden beds. These liners break down over time, reducing environmental impact when compared to standard polyethylene options mentioned above. Biodegradable liners typically last around one growing season before decomposing naturally into the soil.

No Liner Option: Soil on Soil

It is worth mentioning that some gardeners choose not to use any liner in their raised garden beds. Instead, they rely on the natural soil beneath the bed for drainage and weed prevention.

This approach can work well if you have high-quality soil with good drainage properties and minimal weed growth issues. However, keep in mind that using a liner provides an extra layer of protection against weeds and helps maintain optimal moisture levels within your garden bed.


Choosing the right material to line your raised garden bed is crucial for successful plant cultivation. Both fabric liners (such as landscape fabric or geotextiles) and plastic liners (like polyethylene sheeting or biodegradable options) offer their own unique benefits when it comes to weed prevention, pest control, moisture retention, and soil protection.

Selecting the appropriate lining material largely depends on factors such as budget, environmental concerns, personal preferences, and specific gardening requirements. By considering all these aspects alongside our comprehensive guide’s information, you’ll be able to make an informed decision about what to line your raised garden beds with. Happy gardening!