Soleil d'Or Sunflower
Helianthus decapetalus 'Soleil d'Or'
Soleil d'Or Sunflower flowers
(Photo courtesy of NetPS Plant Finder)
Plant Height: 3 feet
Flower Height: 4 feet
Spacing: 30 inches
Hardiness Zone: 4a
Soleil d'Or Sunflower has masses of beautiful yellow flowers at the ends of the stems from late summer to late fall, which are most effective when planted in groupings. The flowers are excellent for cutting. Its pointy leaves remain dark green in colour throughout the season. The fruit is not ornamentally significant.
Soleil d'Or Sunflower is an herbaceous perennial with an upright spreading habit of growth. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.
This plant will require occasional maintenance and upkeep, 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. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
Soleil d'Or Sunflower is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
Planting & Growing
Soleil d'Or Sunflower will grow to be about 3 feet tall at maturity extending to 4 feet tall with the flowers, with a spread of 3 feet. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 30 inches apart. It tends to be leggy, with a typical clearance of 1 foot from the ground, and should be underplanted with lower-growing perennials. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years.
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 highly tolerant of urban pollution and will even thrive in inner city environments. This is a selection of a native North American species. 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.