Outdoor planter boxes are generally used in a container garden to grow flowers, vegetables, or herbs.
Most of these containers are constructed of weather resistant materials that will withstand the outdoor elements.
Wood outdoor garden boxes that hold up to outdoor conditions are mostly made of redwood, cedar, or teak.
You can find them in different shapes and sizes and can be used almost anywhere particularly a rustic outdoor setting.
Many raised beds are constructed of these in the natural state or they can be painted to match any area of your garden.
Raised beds are convenient for gardeners with knee or back problems and they are excellent for drainage.
PVC is a very durable material used in the construction of planter boxes.
They sometimes give the appearance of beautiful wood or clay and you cannot tell the difference until pick one up and realize it is PVC.
They are inexpensive lightweight containers that will last through many seasons of harsh weather and they do not need very much care.
Some of these containers are so beautiful and self-watering they can be used on a front porch or door step to enhance the landscape in front of your house.
Clay planter boxes are good for your plants health but the soil will dry out much quicker than other planters.
They can be very heavy and are fragile so are best if used in a location where you do not have to move them around.
They are also available in various sizes, shapes, and styles; you may even find some to match some of your outdoor yard decorations.
Some outdoor planter boxes are constructed of metal and are quite common.
Some have decorative feet to lift them off the ground for drainage.
Some may come with an inner lining or you can use a plastic liner for protection.
You can find many window-boxes that are constructed of metal and are self-watering.
Hanging planters are also classified as planter boxes for planting flowers that drape or hang over the side.
Hanging planters can be hung from house eaves or patio covers and are available as self-watering.
Almost anything can be used as a planter box for growing vegetables, herbs, or flowers.
You just need to find one large enough to handle the root system of what you intend to plant such as plastic milk containers, bushel baskets, large pressed fiber pots or even an old wheel barrow.
If you want to plant tomatoes the container should be very deep but to plant radishes you only need about a 6-inch deep container.
The larger the container and the more soil used will give the roots more room to spread and less watering on the gardeners' part.
Be sure the containers you use have ample holes for drainage; they can be on the bottom or on the sides.
The excess water needs to drain out so the roots do not get waterlogged.
Most large containers have the holes on the bottom so elevating them on blocks or bricks will give the water a place to go.
The larger the container the more drainage holes it will need.
A well-aerated soil will not need any stones in the bottom because you want as much room as possible for the roots of the plant.
You need to check your containers a couple times a day, especially during the hotter days of summer, for moisture if you do not have self-watering planters or are not using a drip watering system.
Your large containers can use a layer of mulch to help retain some of the moisture.
You need to use outside water that has not been through a water softener; the salts used in a softener can be toxic to your plants.
Collected rainwater is the best and cheapest water that can be used for your outdoor planter boxes.