Delphinium Crystal Delight (Highlander Series)
An erect, clump-forming perennial to around 1.5m tall. Tall flower spires bear double blooms in summer made up of ruffled petals in shades of pale purple and blue with lime-green centres
1-1.5 metres
0.5-1 metres
Grow in a fertile, well-drained but moisture-retentive soil in full sun; shelter from strong winds and provide stakes or other supports. See staking: perennials and delphinium cultivation for further advice
Deadhead spent flower spikes. After flowering, cut down all growth to ground level. If fed and watered well, a second flush of flowers may be produced in autumn
May be susceptible to aphids, earwigs, delphinium leaf miner, delphinium moth caterpillars, slugs, snails and caterpillars
May be susceptible to powdery mildews, delphinium black blotch, grey moulds, Sclerotinia disease, crown rot and cucumber mosiac virus