Delphinium
Delphinium spp.
Special Features
Known for tall, striking spikes of blue, purple, pink, or white flowers. A classic choice for cottage gardens and beloved by pollinators for their nectar-rich blooms.
Plant Specifications
Our team will help you integrate this plant into your landscape design
Growing Delphinium on Martha's Vineyard
Delphinium is one of the most spectacular but culturally demanding perennials in the Martha's Vineyard landscape palette, producing towering spires of intensely blue, purple, or white flowers in June and early July that are unmatched in the sunny border for sheer vertical drama and saturated color. The island's cool maritime springs and moderate early summers are actually close to ideal delphinium conditions, though the humid August climate requires careful spacing and air circulation management to prevent the crown rot and mildew that can shorten plant longevity in less attentive programs. Siting in the sheltered, sunny borders of properties in Edgartown and Vineyard Haven, protected from the persistent coastal winds that can topple tall stems, is important for reliable performance.
Deer are known to browse delphiniums, so placement in visible, trafficked areas or within fenced garden enclosures is advisable. Estate Care professionals stake delphiniums individually before bloom, cut stems back after the first flowering flush to encourage a secondary bloom in late summer, and treat them as showpiece plants that reward intensive care with exceptional ornamental returns.
