Color theory

Small Gardens Mean Fewer Colors

To keep a small garden from looking chaotic, show restraint with the number of flower colors. Smallish gardens can look fabulous with only two colors. This is not to say only two types of plants. Yellow and purple flowers pair well and give the gardener a large number of choices. Repeating the same flower colors but using different sizes of blooms and leaf forms provides attractive contrasts. Because flowers bloom on their own timeline, the use of different plants with the same bloom shades will keep the garden colorful even if some of them are taking a blooming siesta.

For my own small courtyard garden, I decided all perennials and flowering shrubs would be in shades of yellow, coral, and purple. To lure pollinators, I included yellow goldenrod (Solidago) and brown-eyed Susans (Rudbeckia triloba) in the dryest area, and yellow rain lilies in the damp areas near the drainage catch basin. For coral shades, I used Drift roses (small, shrubby, lower maintenance than most roses), coral penstemons, a dwarf Red Hot Poker (Kniphofia ‘Poco Red’) which is more coral than red, and a couple unknown varieties of daylily. For the purples, I chose sterile, dwarf Pugster® butterfly bushes (Buddleia), purpleheart (Tradescantia), purple coneflowers (Echinacea purpurea), and lavender-flowered Society Garlic (Tulbaghia violacea). All these plants attract numerous butterflies and hummingbirds.

I wasn’t certain that the Cuphea ‘Candy Corn’ that I planted last year would overwinter, but they did and now the yellow and orange flowers look right at home between the corals and yellows. The Gaillardia ‘Spin Top Red’ I planted last fall is more red than coral, but it has bloomed so lavishly that it will remain. Several varieties of Calla lilies in the chosen colors have not begun flowering yet.

This being a first-year garden, there were a number of empty holes in the layout, so I started annuals from seed to fill in the gaps. Next year, those gaps will be smaller as the shrubs and perennials gain size. By year three, annual use will be at a minimum. For now, yellow Melampodium, coral Zinnia, coral Salvia, purple Gomphrena and purple Salvia are providing abundant color. These were chosen not only for their hues but because they flower like mad all summer long and require little in the way of maintenance, other than the occasional removal of spent flowers (Zinnia and Salvia).

My past gardens have never featured coral shades, but I’m loving this color in the new beds. Plans are underway to add peachy/coral shades of Yarrow, Alstroemeria, Lycoris (“Hurricane Lily”), and Chrysanthemum to extend the chosen color palette into autumn. I’m including a few photos of the coral plants.

Selecting Colors for Flower Beds

Balanced color combinations are the most pleasing to the eye. You do not need to be an expert in color theory to understand that it’s all a matter of saturation. Our eyes tell us that intense orange flowers pair well with deep purple and apricot flowers play nice with lavender.

Almost every combination of hues has advantages. Pastels groupings look great in spring. (See the photo for pink begonias paired with rose-veined Caladiums.) Bold blends of reds, oranges and yellows can hold their own during hot months. Muted shades of burgundy and rust fit our preferences as we enter the autumn months. Neutrals like ivory, white or gray look wonderful as standalones or when used as a peace-making barrier between clashing colors.

When planning your choice of annuals for the year, don’t be afraid to pull out that color wheel from elementary school.  (Don’t have one? Google does. I particularly like those provided by sites that offer printing services, like PengadPrinting.com.) It may inspire you to new levels of greatness in your flower bed choices. It is unlikely, for example, that you would choose to wear an outfit combining chartreuse, orange and purple. Consult your color wheel, however, and you may opt to pair orange zinnias, chartreuse sweet potato vine and violet petunias for beds that zing with energy.

There are four basic color harmonies: warm, cool, complementary and tetradic. Yellow, orange and red are considered warm colors, like fire or the sun. Blue, green and purple are cool colors that remind us of water, grass or the sky. Compound or complementary combinations are generated by selecting two colors on the wheel and the color opposite in a triangle. This produces my favorite combo, blue/purple/yellow. Tetradic combinations use a rectangle rather than a triangle. Example: red, purple, yellow-green and blue-green. If your rectangle has equal length sides (a square), a possible combination is orange, blue, yellow-green and violet. If you love lots of different colors in your beds, you cannot go wrong with a tetradic combination.

If discussions of color theory make you consider going all white with your flower choices, proceed with caution. There are many different shades of white. Ivory will look dirty when seen next to pure white. Some white flowers turn ugly as they age. White azalea and camellia blooms are gorgeous when young but become wretchedly ugly as they wither and brown.

At one time, color combinations of bedding annuals in the Mary Snoddy garden changed each year. I followed a patriotic theme one year, using white Catharanthus (vinca), red Salvia and blue Wave petunias. The following year it was red, pink, rose and white Zinnias, followed by a year of yellow Marigolds and purple Verbena. In the last six years, I have transitioned towards perennials and shrubs rather than annuals. I will reserve one bed for annuals, so that I can play with different color combinations. Change is fun.

Pink veined Caladiums paired with giant pink begonias at the Atlanta Botanical Garden in Gainesville

Pink veined Caladiums paired with giant pink begonias at the Atlanta Botanical Garden in Gainesville

Yellow and red Portulaca in a hanging basket for a combination that never needs supplemental water.

Yellow and red Portulaca in a hanging basket for a combination that never needs supplemental water.

A new container planting of primary colors. The Rumex at the rear serves as a moisture indicator, wilting when it is time to water. The sweetgum balls atop the soil serve to discourage my cats from napping here.

A new container planting of primary colors. The Rumex at the rear serves as a moisture indicator, wilting when it is time to water. The sweetgum balls atop the soil serve to discourage my cats from napping here.