What to Plant With Dahlias

Dahlias are an impressive flower to showcase in the garden. Their large blooms and exciting variety of colours and shapes creates an incredible display throughout the summer.

Full of life and vibrancy, it’s easy to see why they’re a seasonal favourite among gardener’s. Although Dahlias offer plenty to the garden on their own, discovering new and exciting Dahlia companions can take your displays to new heights. With that in mind, we have chosen our favourite Dahlia companion plants to consider for your summer gardens.

Echinacea

Echinacea’s produce beautiful blooms, each one boasting with colour. Flowers from July to September and will add dimension to your Dahlia displays.

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Echinacea Green Jewel
Echinacea Single/Double Mixed
Echinacea Unusual Colour Collection

Geraniums

Geraniums are often considered a British summer garden staple. Their wide range and variety provides you with plenty of option for your seasonal display.

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Geranium Century F1 Red
Geranium Double Sybil Mixed
Geranium Single Trailing Collection

Crocosmia

Originating from South Africa, Crocosmia boasts with beautiful blooms in vibrant shades throughout the summer. They’re also incredibly hardy, making them a perfect Dahlia companion plant.

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Crocosmia Sunglow
Crocosmia Large Flowering Mixed
Crocosmia Large Flowering Collection

Verbena

Last but by no means the least is the beautiful Verbena. Blooming all season long, this versatile flower is an essential summer garden addition whether planting with Dahlias or on their own.

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Verbena Santos Purple
Verbena Quartz Mixed
Verbena Samira Collection

Read More from J Parker’s

September Plant of the Month – Echinacea purpurea

Echinacea purpurea

Echinacea mixed

Echinacea are incredibly vibrant coloured cone flowers with giant heads on tall stems. Their bright colours will attract wildlife to your garden, as bees and butterflies love this plant as much as we do. The purpurea varieties are the only Echinacea grown from root stock, producing those thick stems that make them perfect for use as cut flowers. Echinacea are a tough plant, their eye catching colourful blooms that draw so much attention actually love to be ignored, a great hassle free choice for you garden.

The delightful shades of Echinacea purpurea are ideal for a summer border. The cheerful flowers look great mixed in with other plants and bulbs, or can be planted en-masse for a bold splash of colour. They will even do well in pots – plant in a deep container and position where they will get plenty of sunlight.

Companion plants

colourful mixed perennials flower bed

Echinacea are spectacular in a mixed border – as illustrated above. They partner really well with Rudbeckia varieties, as you can see above, the bright purples look particularly striking against the bright yellow of the Rudbeckia Goldsturm. We’ve highlighted a few more great companion plants in the gallery below.

Planting

POTM September Echinacea Quick facts box

Echinacea need to be grown in full sun, they won’t thrive at all in shade but will cope with a little. They are tolerant of a wide range of soils as long as it is well drained and they are drought tolerant once established. Deadhead to prolong flowering. You can propagate by division in spring and autumn but they prefer not to be disturbed and can become more bushy in habit but less floriferous.

How-to Tutorial

Jeff demonstrates how to plant border perennials together in this easy to follow video. Rudbeckia and Echinacea complement each other exceptionally and both make excellent summer border plants.

Aftercare

Pinch off spent flowers on a regular basis — or use them as cuttings in flower arrangements — to extend the blooming period. Apply a quality flower fertilizer several times during the gardening season to promote big, beautiful blossoms. Mulch to prevent weeds, conserve moisture and improve aesthetics.

Cut plants to the ground in late winter after flowers have gone to seed.

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