Excalibur™ Pure White Delphinium

Excalibur™ Pure White is a Delphinium elatum perennial in Syngenta’s Excalibur™ series. This upright, medium-vigorous selection has sturdy flower stems and a breeder-listed garden size of 24–32 inches tall by 14–18 inches wide. ## Garden Profile The exact Pure White selection is offered as seed for full sun and is listed for mid-spring through summer flowering. Syngenta recommends larger pots and containers, and identifies the flower color as white. Its height and upright form also suit the back of a sunny perennial border; see the [Syngenta product profile](https://www.syngentaflowers.com/ams/product/flower/70001030). ## Planting Grow delphiniums in fertile, well-drained soil in a sunny site protected from strong winds. Allow room around the plant so neighboring growth does not crowd the flower stems. ## Maintenance Set supports early as stems develop, water during dry spells to keep soil moist without waterlogging, and deadhead faded spikes for further flowers. The [RHS perennial delphinium guide](https://www.rhs.org.uk/plants/delphinium/perennial/growing-guide) provides general growing advice.