Garden Stories

Delphiniums: The Elegant Giants of the Summer Garden

Towering spires, cool blue tones, and a dramatic presence — delphiniums are the vertical showstoppers of the summer border. Loved by gardeners for their height, elegance, and unmistakable colour palette, they bring structure and theatre to any planting scheme.

Whether you're designing a cottage garden or a modern perennial border, these tall perennials offer a combination of beauty and impact that few plants can match. This is your guide to growing, supporting, and combining delphiniums for maximum effect.

Tall blue delphinium flowers blooming in midsummer
Delphiniums in full midsummer bloom.

Why gardeners love them

Delphiniums are known for their dramatic height — often reaching between 1.5 and 2 meters — and their ability to create vertical interest in garden designs. Their cool blues, purples, and whites contrast beautifully with warm-toned roses, peonies, and foxgloves.

They thrive in rich, well-drained soil and prefer cooler climates, making them a favourite in traditional English-style borders. With the right care, they reward gardeners with repeat blooms and stronger plants year after year.

Close-up of delphinium petals showing deep blue colour
A closer look at the iconic delphinium colour.

Looking to add delphiniums to your garden? Fresh stock is available weekly, straight from the Dutch flower auctions.

Flowers

How to grow delphiniums

Growing delphiniums successfully comes down to three essentials: sunlight, soil, and support. Follow this simple cycle to keep your plants healthy and blooming throughout the season.

  1. Spring

    Planting & Feeding

    Plant delphiniums in nutrient-rich soil and feed them early in the season with a balanced fertilizer. This gives them the energy they need to produce tall, strong flower spikes.

  2. Early Summer

    Supporting

    Stake plants before they reach full height to prevent stems from bending or snapping. Delphiniums grow fast — early support is essential.

  3. Mid Summer

    Blooming

    Enjoy the spectacular display of tall flower spikes. Keep plants well watered during dry spells to maintain bloom quality.

  4. Late Summer

    Cut Back & Repeat

    After flowering, cut back spent spikes to encourage a second flush. With proper care, many delphiniums bloom twice in one season.

Delphiniums bring height, elegance, and unforgettable colour to any garden. Their dramatic presence makes them a favourite among gardeners who want to create borders with depth and visual interest.

Whether you're planting a single specimen or designing a full perennial border, delphiniums offer a timeless beauty that transforms any outdoor space into a midsummer showpiece.

Bloemen & Groen - Delphinium

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