Digging deeperPlant Library
Joan Senior Daylily
Hemerocallis 'Joan Senior'
Joan Senior Daylily flowers
(Photo courtesy of NetPS Plant Finder)
Plant Height: 18 inches
Flower Height: 24 inches
Spacing: 18 inches
Hardiness Zone: 3
Joan Senior Daylily features bold white trumpet-shaped flowers with chartreuse throats at the ends of the stems from late spring to mid summer. The flowers are excellent for cutting. Its grassy leaves remain green in color throughout the season.
Joan Senior Daylily is an herbaceous perennial with a shapely form and gracefully arching foliage. Its relatively fine texture sets it apart from other garden plants with less refined foliage.
This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. It is a good choice for attracting butterflies to your yard. It has no significant negative characteristics.
Joan Senior Daylily is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
Planting & Growing
Joan Senior Daylily 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. 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 does best in full sun to partial shade. It prefers dry to average moisture levels with very well-drained soil, and will often die in 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.
This Plant Library is for informational purposes only. We may or may not carry the items listed. During many times of the year, we may carry many more plants in our store than are listed in the Plant Library. Please contact us directly at 303-690-4722 or visit our store for current availability and for assistance.