Abundantly blooming over a very long season, this sport of Creme Brulee offers spectacular color changes for the sunny garden. Superbly mildew-resistant, floriferous, and densely branched, it is a terrific choice for cutflowers, garden enjoyment, or both!
Sienna Sunset is a cultivar of the native Threadleaf Coreopsis, discovered as a naturally occurring branch mutation of C. Creme Brulee. Its 1½-inch blooms open a pastel shade of orange, then gradually mature to apricot with hints of salmon. Unbelievably profuse, they cover compact plants just 16 to 20 inches tall and 36 inches wide. The show begins in early summer and continues right up to the first frost of autumn.
The foliage of this perennial is handsome as well. Very finely cut, it is mid-green and held discreetly below the blooms, which arch up and out from the plant on slender stems. Many Threadleaf Coreopsis cultivars are plagued by powdery mildew, particularly in humid or rainy climates, but Sienna Sunset demonstrates a breakthrough in resistance to this disease. Even if you live where summers are long, hot, and humid, it will stay fresh and healthy!
An adaptable native, Sienna Sunset is very attractive to butterflies while repelling unwanted pests such as nibbling deer and rodents. It tolerates dry soils, though good drainage is essential. You will find it quick and easy to grow in any sun-drenched garden spot. It can also tolerate a bit of shade, but the best blooming and vigor will occur in full sun settings. Find its ideal location in your garden! Zones 5-9.