part-sun, part-shade, shade
rich, average, poor, loam, clay, gravel/rock
4, 5, 6, 7, 8, 9
"Heuchera villosa ‘Citronelle’ is a vigorous, clump-forming, compact coral bells cultivar that features cordate yellow-green leaves on rosy red petioles. It was discovered as a naturally occurring sport of Heuchera ‘Caramel’ in a nursery bed in Hantay, France in July of 2002. The lobed, crenate, rounded leaves (5-7 lobes per leaf) form a basal mound (to 6” tall) which may spread to 14” wide. Tiny, creamy white flowers appear in spires in summer (later than most heucheras) on slender stems rising above the foliage mound, typically to 10-12” tall. It is the foliage (not the flowers) that distinguishes this plant. ‘Citronelle’ is considered to be more tolerant of hot and humid summers than most other heucheras, in large part because it has H. villosa (SE US native) in its parentage.
Easy to grow in average, rich, moist, well-drained soil. It will tolerate dry conditions in the shade. Can also be planted in full sun, but will require constant moisture to avoid leaf scorch. This an ideal plant for rock gardens, or open-shade gardens. Is used most effectively in group plantings. Deadheading will extend bloom times. Clumps should be divided every few years to encourage strong flower production. May be considered evergreen in the south.
U. S. Plant Patent PP17,934 was issued August 21, 2007.