Thomas Killen Shasta Daisy
Leucanthemum x superbum 'Thomas Killen'
Thomas Killen Shasta Daisy flowers
(Photo courtesy of NetPS Plant Finder)
Plant Height: 24 inches
Flower Height: 3 feet
Spacing: 20 inches
Hardiness Zone: 4a
Thomas Killen Shasta Daisy has masses of beautiful white daisy flowers with yellow eyes at the ends of the stems from early to late summer, which are most effective when planted in groupings. The flowers are excellent for cutting. Its serrated narrow leaves remain dark green in color throughout the season.
Thomas Killen Shasta Daisy is an herbaceous perennial with a mounded 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 butterflies to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
Thomas Killen Shasta Daisy is recommended for the following landscape applications;
Planting & Growing
Thomas Killen Shasta Daisy will grow to be about 24 inches tall at maturity extending to 3 feet 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 20 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 fast rate, and under ideal conditions can be expected to live for approximately 5 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 does best in full sun to partial shade. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. 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.
Thomas Killen Shasta Daisy is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. Because of its height, it is often used 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. It is even sizeable enough that it can be grown alone in a suitable container. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.