Planting On Walls: How To Create Outdoor Wall Gardens

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By Bonnie L. Grant

Vertical gardening has become all the rage. This may be due to a decline of single family housing, a desire to do something different or an attempt at whimsy and the unexpected. What vertical gardening does is maximize space and utilize areas that are not traditional planting spaces, increasing the growing square footage. Planting on walls is only one way to garden upward, but it is a good use of an already existing structure and there are tons of ways to make it really pop. We have some great ideas on how to create outdoor wall gardens and give the eyes plenty of beautiful dimension upon which to rest.

Using Walls in the Garden

Garden walls may be adapted to be more than just a barrier but to also accent the garden and soften or enhance these privacy structures. Garden wall plants create a conduit between the manmade structure and the garden that they protect. They may also form a symbiotic relationship with the wall as it supports them and provides them with a foothold. Planting on walls is also the equivalent of a gardener’s “tag.” It gives you an opportunity to express your uniqueness and the way you view life.

The first thing to consider is the type of wall or structure you have in the landscape. Is it sturdy? Does it have anything from which to hang plants? Can you drill into it or attach support assists, containers, hooks and other items in any other way? You can overlook this if you have a temporary or moveable support against the wall.

Often, the simplest idea to utilize a wall is to plant at its base. Garden wall plants that climb can clamber effortlessly over the wall, dazzling the eye and adding a counterpoint to brick and mortar. You may have to use some string or other support at the onset to help the plant up.

While considering plant strategies and effects, your zone, site conditions and the amount of maintenance you wish to do are all additional things to deliberate. Next, decide if you want evergreen or deciduous, climbing or hanging, flowering or foliage and add these decisions into your theme.

If you opt for climbing plants, make sure you have enough height for the maximum size at maturity the plant will become. Additionally, if you will need to prune the plant, the height of the wall may be an issue unless you want to get up on a ladder annually.

Hanging plants may be in baskets, planter boxes affixed to the wall, in pots that are tucked into cracks and niches, or artfully and discretely planted on the top of the wall. Hooks that fit over the top of the wall can hold a container disguised by the plants and some moss tucked in around them to hide the supports.

When growing plants on walls, avoid climbing plants that affix themselves to the wall with sticky pads. These scar masonry and can rip up mortar if damaged or if they need to be pulled away.

Types of Plants for Walls

Using walls in the garden as planting areas expands your options in the home landscape. This type of gardening should be easy to maintain, have low maintenance and still provide a screen or add lushness to a manmade structure.

Some useful vine type plants might be:

For plants to place into the chinks and holes in older walls, try:

If you choose to mount a container of some sort, you might use:

The sky is the limit, or rather the wall is, so try some unique combinations and cover that wall with simple but elegant beauty.

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