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Design

Taming a High-Impact Design

A structured approach puts lush color and texture in the spotlight

Fine Gardening - Issue 189
That's a lot of color! The effective use of focal points, massing, and a limited color palette keep this vibrant garden from feeling unkempt or unruly. Photo: Carol Collins

The back patio is the heart of our two-acre garden in Indianapolis. Convenient to the house, it is a favorite spot for dining and relaxing, and it is a central hub for the paths that connect our back doors and driveway to the garden beyond.

When planting around this pivotal spot, I set out to create a colorful, inviting space with a tropical vibe during the warmer months. I wanted it to have a naturalistic style, with ­plenty of contrasting textures, forms, and colors so that there would always be something to catch the eye.

To keep the design from feeling chaotic, I used a focused color palette, carefully sited centers of interest, and strategic massing for a calming effect. Here’s how I make it all work.

Just steps away from the kitchen, the patio is a favorite and frequently used outdoor room. Lush plants enclose the space and lend a tropical vibe to summer gatherings without encroaching into the space. From a distance, the high-contrast plant palette blends into a richly textured tapestry that invites closer inspection. Photo: Carol Collins

 

Striking focal points grab attention, while a large and varied cast of supporting players picks up on their patterns, shapes, and colors. Photo: Carol Collins

 

Photo: Carol Collins

 

To keep the design from feeling chaotic, I used a focused color palette.

 

Start with a strong framework

I have been a horticulturist long enough (and have made enough mistakes) that I always ­begin my design process by dealing with the bones of the entire garden. This holds true in smaller spaces such as the patio garden, where figuring out the location for larger plants or groups of plants came first, before I placed smaller individuals or groups.

This is a garden where annuals and tropicals add seasonal flair, and hardier specimens persist as anchors throughout the year. I love the strong vertical accents provided by ‘Green ­Arrow’ Alaskan cedar (Chamaecyparis nootkatensis ‘Green Arrow’, Zones 4–8) and ‘Degroot’s Spire’ arborvitae (Thuja occidentalis ‘Degroot’s Spire’, Zones 3–8). These evergreens screen and maintain the visual space of the garden throughout the year. They add height and differ sharply with the general flatness of the surrounding area.

Other structural plants are sited and spaced so they can claim the spotlight as they come into view. Grasses and their relatives contribute their part to the equation and are always left until spring before being cut back.

Vibrant violets and deep reds are key hues throughout the garden. They lend a sense of continuity and draw the viewer’s eye through the space. Photo: Carol Collins

 

See some of the author’s favorite cold hardy high-impact plants

 

A focused palette keeps the look cohesive

Repeating key colors helps to tie everything together and connects this space to garden areas farther out. Beyond green, I am drawn most to dark reds and purples, which are repeated often in the patio garden. These colors are so saturated, though, that they can almost recede from view. To brighten up the planting, I use a whole range of greens, yellows, and oranges as contrast and background.

I am continuously learning about and trying unfamiliar plants, but I also appreciate the time-tested plants that come back reliably over many years. Whether I am working with new-to-me varieties or long-time favorites, planting in masses helps keep the experiment looking controlled. Individual specimens inform the choices for the remaining companion plants to achieve the desired effect.

Limiting the number of colors in the composition helps to guide plant choices and to tie contrasting shapes and textures together.

 

Massing keeps the mood mellow

Masses, including certain small trees and larger shrubs, have a calming effect and are a key part of the garden’s structure. Without their visual weight, all of the smaller-scale annuals I use would feel too busy. For example, I allow tall verbena (Verbena bonariensis, Zones 7–10) to seed in pockets through the bed. I also like to plant a single canna cultivar, often ‘Bengal Tiger’ (Canna ‘Bengal ­Tiger’, Zones 7–10), in a meandering line or an occasional swath to provide continuity.

I am always leery of the inherent dangers in a formal garden layout. I have found that flexibility is the key to my design aesthetic. Plants cycle through the composition, and if they are lost or removed, their absence may hardly be noticed. With just a little discipline, an adventurous plant palette can come together to create a high-impact design that feels balanced and cohesive.

 

Read more:

Favorite cold hardy high-impact plants

Plant ID’s from this article

 


James Kincannon is a horticulturist in Indianapolis.

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