Delphinium elatum is a commanding perennial that has graced gardens since 1578, native to the clearings and river valleys of Europe and Siberia. These herbaceous plants produce spectacular flowering spikes reaching 24 to 36 inches tall, densely packed with 25 to 100 showy blue florets that bloom from May through July. Hardy in zones 3 through 7, delphiniums thrive in full sun and fertile, well-drained soils, though they do appreciate afternoon shade in hot climates. These striking flowers attract butterflies and hummingbirds while remaining stubbornly resistant to deer browsing, and their showy blooms make them exceptional as cut flowers for arrangements.
18
Full Sun
Moderate
3-7
36in H x 12in W
—
High
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Delphiniums produce erect terminal spikes so densely packed with blue florets that they create an almost architectural presence in the garden. The flowers are equally stunning in a vase, making them prized for cutting. Their ability to attract pollinators while repelling deer gives them real utility beyond pure beauty. Growing them well does demand commitment to staking, deadheading, and careful watering, but gardeners who provide this attention are rewarded with some of the most dramatic blue flowers available to temperate gardeners.
Delphiniums are grown primarily as ornamental perennials and cut flowers. Their tall, showy spikes of blue florets make them centerpieces in cottage gardens and formal borders, while their exceptional keeping quality as cut flowers has made them fixtures in florists' arrangements and wedding bouquets.
No timeline data available yet for this variety.
Delphiniums require regular deadheading to extend flowering and potentially encourage a second bloom flush. Pruning is essential for disease management and to maintain plant health; remove any diseased foliage promptly and cut back stems after flowering concludes in late summer.
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“Delphinium elatum has roots stretching back to at least 1578, when species plants were first documented in cultivation. This herbaceous perennial is native to the clearings, woodland margins, and river valleys stretching from southern and central Europe through Siberia. Over centuries, gardeners and plant breeders developed the complex hybrids now dominant in commerce, particularly the Elatum Group (sometimes designated Delphinium x elatum), which introduced numerous showy cultivars into garden trade through various series and strains. These cultivars are widely considered among the showiest flowering plants available to gardeners in cool climates.”