Raised Garden Types

by Janice Messali

Overview

There are many types of raised gardens.

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Raised gardens increase soil temperature, improve drainage, protect flowers and vegetables from pets, and reduce a gardener's back strain. There are many types and sizes of raised gardens to choose from. With careful planning, a raised garden should last many years.
Wood

Wood is a common, inexpensive material used for raised gardens. Eartheasy, a manufacturer of many types of raised beds, recommends using cedar and galvanized nails. The Environmental Protection Agency does not recommend the use of pressure treated wood because the chemicals used in processing may leach into the soil.

Concrete

Decorative raised gardens are often made from concrete blocks, bricks or stone. These materials are extremely durable, but more expensive than wood.
Hay

Bales of hay or straw can be used as the borders of informal raised gardens. This is a temporary method, as the bales will decompose after about a year. The advantage is being able to easily change the garden shape and size when rebuilding.
Composite Wood

Composite, or engineered, wood is sometimes used for raised garden beds. There are concerns about the resins and adhesives used in some composites. The California Environmental Protection Agency states that formaldehyde resins are potentially carcinogenic.
Containers

Wine barrels, tires, buckets and other containers can be used as raised garden beds. These are especially useful for small spaces. Containers must have a drainage hole in the bottom.
Recycled Plastic

Recycled consumer waste, such as milk jugs, is formed into plastic boards. Raised gardens made from recycled plastic are considered very durable and nontoxic.

Overview