Summer Stars Larkspur — photo 1

Summer Stars Larkspur

Delphinium grandiflorum 'Summer Stars'

Compact, heat-tolerant dwarf with masses of pure white butterfly-type blooms.

Plant Type
Perennials & Annuals
Width
10-12 In.
Height
10-14 In.
USDA hardiness zone
3 - 8
Sun requirements
Full Sun, Part Shade
Water requirements
Moderate

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About Summer Stars Larkspur

Summer Stars is a dwarf perennial larkspur valued for its white summer flowers and compact, upright growth. It is suited to the front of a sunny border, a small container, or a cut-flower planting where its short stems fit the design. ### Flowering and placement The [Willowbrook Nurseries profile](https://www.willowbrooknurseries.com/plant-name/Delphinium-grandiflorum-Summer-Stars) describes this exact Delphinium grandiflorum selection as an early-blooming, compact plant about 10–12 inches tall and wide, with white summer flowers. The breeder’s [Benary Summer Stars product page](https://www.benary.com/products/delphinium-grandiflorum-summer/summer-stars-dg0205r) lists the selection at about 14 inches tall and identifies it for bedding, containers, landscape use, and cut flowers. The small differences in published height reflect how compact plants are grown and measured. ### Growing conditions Plant in full sun to partial shade in well-drained soil and water during dry periods while the clump establishes. Its short stature works well along the edge of a mixed perennial bed or grouped in a pot, where the white flowers provide a bright contrast to deeper colors. The Willowbrook profile also notes that the flowers draw butterflies and hummingbirds. ## Maintenance Remove faded flower stems to keep the plant neat and encourage continued display. Cut back old foliage after flowering and divide mature clumps if they become crowded.