You Can DIY These Inexpensive Raised Garden Bed Ideas (2024)

FAQs

How to build a raised garden bed cheap on a budget? ›

Concrete blocks, or cinder blocks as they used to be called, are another item that could be cheap if you're upcycling them from another project. Pricing them out, they can cost anywhere from $1.50 to $5 apiece, making them a budget-friendly option, even for a larger raised bed.

Store-bought raised garden beds come in a variety of sizes and styles, but can be pricey. For those interested in raised bed gardening without the expense, these DIY raised garden beds with step-by-step instructions can be built in a few hours and often for a fraction of the cost of store-bought kits.

Pine is a cheaper alternative to more expensive types of wood and easy to find in most hardware stores. Keep in mind, however, that pine will have a much shorter life expectancy in your garden than cedar and redwood. Even within wood types, know that there can be some variation.

A depth of 8 – 12 inches will suffice for most gardening situations. Because of the excellent drainage properties of raised beds, it is possible to grow an abundance of vegetables in a limited amount of space.

Best Soil for Raised Garden Beds

We recommend buying high-quality, nutrient-rich soil in bulk. Or, you can make a soil mix with equal parts topsoil, organic materials (leaves, composted manure, ground bark), and coarse sand.

For a 4x8–foot raised bed with a 10” height, about 1 cubic yard of soil is needed. For a 4x8-foot raised bed with a 6” height, using Mel's Mix: about 5 cubic feet each of compost, peat moss, and vermiculite is needed.

The cons of raised beds

The soil mix also can be a significant, albeit one-time, expense. Raised beds need water more often since the soil is more exposed to air and dries quicker. Similar to growing in containers, the extra watering can leach nutrients out of the soil quicker than in-ground gardens.

Can I use ground soil in a raised bed? ›

Soil taken from your yard or a garden bed is too dense to use in a pot or raised bed. Instead, for containers, you'll want to use potting mix (also called potting soil), a lightweight and fluffy alternative. For raised beds, you'll want to use a blend of potting mix and garden soil.

The soil in your raised beds will break down over time; however, you don't need to replace all of the soil in your raised bed garden to have beautiful, vibrant, or bountiful plants. Before planting the following growing season, add Miracle-Gro® Refresh™ Soil Revitalizer to your old soil, following package directions.

You can safely use other kinds of untreated hardwood to build raised beds, but your project will rot and warp in a few years, depending on the wood. Plastic lumber is durable lumber that looks a lot like wood. The plastics and composites used to make the product vary by manufacturer. They may or may not be food safe.

He stated in a bulletin titled, Treated Wood in Raised Bed Gardening, “Scientific evidence and data have shown that using pressure treated wood for raised bed or box gardening is safe to adults and children in terms of the plants grown and used in these containers.” He further explains, “All chemicals in consumer ...

The Type of Wood Used

Cedar, redwood, cypress, and hemlock are all types of wood that don't decay or rot quickly, and they can be expected to last anywhere from 10 to 20 years. Check which of these durable boards you can find locally sourced. My preference is always untreated cedar.

Save Money by Adding Leaves to the Bottom of a Raised Garden Bed. Leaves can be super beneficial to a garden. They fill your beds with organic matter that will slowly build great soil, and they're free!

The minimum required depth depends on the plant. But on average, a raised garden bed should accommodate about 20 inches of soil for the roots of flowers and vegetables.

He stated in a bulletin titled, Treated Wood in Raised Bed Gardening, “Scientific evidence and data have shown that using pressure treated wood for raised bed or box gardening is safe to adults and children in terms of the plants grown and used in these containers.” He further explains, “All chemicals in consumer ...