PLANT FINDER
Delgenius® Shelby Larkspur
Delphinium 'Shelby'
Plant Height: 18 inches
Flower Height: 24 inches
Spacing: 18 inches
Sunlight:
Hardiness Zone: 2a
Other Names: Bee Delphinium
Group/Class: Delgenius Series
Brand: Pacific Plug and Liner
Description:
Tall sturdy stems of beautiful lavender double flowers emerge from bushy mounds of dark green foliage; blooming from early to late summer, an excellent addition to borders, beds and patio containers; stunning cut flower; remove spent flower spikes
Ornamental Features
Delgenius® Shelby Larkspur features bold spikes of lavender flowers with sky blue edges rising above the foliage from early to late summer. The flowers are excellent for cutting. Its deeply cut lobed leaves remain dark green in color throughout the season.
Landscape Attributes
Delgenius® Shelby Larkspur is an herbaceous perennial with a rigidly upright and towering form. Its relatively fine texture sets it apart from other garden plants with less refined foliage.
This plant will require occasional maintenance and upkeep, and should be cut back in late fall in preparation for winter. It is a good choice for attracting bees, butterflies and hummingbirds to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
- Insects
- Disease
Delgenius® Shelby Larkspur is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
- Container Planting
Planting & Growing
Delgenius® Shelby Larkspur will grow to be about 18 inches tall at maturity extending to 24 inches tall with the flowers, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 18 inches apart. The flower stalks can be weak and so it may require staking in exposed sites or excessively rich soils. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!
This plant should only be grown in full sunlight. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This particular variety is an interspecific hybrid. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.
Delgenius® Shelby Larkspur is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.
Characteristics
Applications
Ornamental Features