How deep should a raised planter box be?

A raised bed does not have to be very deep to be effective. Eight to 12 inches is usually adequate. If drainage is a problem, or if the plants you are growing prefer drier soil, the bed could be taller and filled with a porous growing medium.

What do you line planter boxes with?

Types of waterproof liner for planter boxes

• Plastic pots. Plastic pots are quite convenient.
• Plastic sheeting. If you want a more permanent liner, then plastic sheeting is a good option.
• Resin.
• Fibreglass.
• Pond liner.
• Varnish.
• Spray-on liner.
• Improved durability.

What kind of wood should be used for raised beds?

cedar
What Kind of Wood to Use? In most cases, cedar is the best wood to use for garden beds because cedar is naturally rot resistant. Western red cedar is commonly used, but white cedar, yellow cedar and juniper are also high-quality choices for outdoor construction projects.

Does a planter box need a bottom?

Your raised bed might need a bottom if you have pest problems or you experience lots of water in your garden. So really, it’s an automatic yes, especially because it helps when your raised soil mixes with the soil on the ground, but it helps to keep your plants safe.

Is pressure treated wood safe for planter boxes?

Even though the new pressure-treated woods are considered safe, Wolmanized Outdoor, according to its Web site, does not recommend using pressure-treated wood where the preservatives may become a component of food. Its recommendation is to use an impervious liner between the wood and the soil.

Should a planter box have a bottom?

Do I need to line a wooden planter box?

You need to line your planter box if it’s made from wood or metal. The liner will help prolong the planter’s life. You don’t need to use a liner if the planter is made using plastic, ceramic, or concrete as they are quite durable by themselves.