19 of the Best Flowering Companion Plants for Dahlias
Dahlias (Dahlia spp.) add pizzazz to the landscape with bold single or double blooms in a varied color palette, including black, orange, pink, purple, red, white, and striking multicolor combinations.
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These non-native, tender, tuberous flowering bulbs are perennials in USDA Hardiness Zones 8 to 11 and annuals in Zones 3 to 7, though they may make it through the winter with added protection in Zone 7, or the tubers can be lifted for storage and replanting.
Dahlias bloom from summer to fall. They prefer full sun locations and organically rich, moist, well-draining soil with a slightly acidic to neutral pH of 6.5 to 7.0.
The sizes of cultivated varieties range from nine to 60 inches tall and 12 to 24 inches wide. At season’s end, many devoted gardeners lift their much-loved tubers to store for the winter, divide as needed, and replant the following spring.
Flowers with such eye-popping visual appeal can stand alone or grace the company of garden companions that share their cultural requirements.
In our guide to growing dahlias, you’ll find all you need to know to fill your gardens with showy, richly-hued blooms.
This article focuses on 19 of the best flowering companions for dahlias.
Here they are, from A to Z:
19 of the Best Dahlia Companions
Let’s jump right in and meet them!
1. Agapanthus
Perennial agapanthus (Agapanthusspp.) has rounded clusters of lily-like blue, violet, or white flowers. It is suited to Zones 6 to 11, where it blooms in full sun in the spring and summer.
Mature dimensions are 22 to 44 inches tall and wide. Shorter cultivars are suited to beds and
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