This cultivar is an annual or herbaceous perennial with a slender and erect habit. It has dark green lobed leaves towards the base and the blue, lavender, lilac or white flowers are arranged in a tall cylindrical raceme that is held above the foliage in summer.

Hardiness zones 8 to 10

This is a cultivar of Delphinium elatum.

Delphinium x cultorum is naturally found in Europe growing in well drained fertile moist light soils in an open sunny position and is frost and drought tender. 

Garland Larkspur is grown for its flowers and is mass planted in bedding displays for parks and large gardens. It is also grown along borders in small or cottage gardens and the flowers are cut for floral arrangements. It establishes in one season and taller varieties may require staking with wind protection. It takes 6 months to produce flowers from seed. ID 326

Delphinium (del-FIN-ee-um) x cultorum                  

Ranunculaceae (ra-nun-kew-LAY-see-ee)   
Buttercups, Monkshood, Cohosh, Columbine