Daphne x burkwoodii “Silveredge”
Known as- Daphne
Grow Zone - 5 to 8
Type- Deciduous shrub
Smith Scl. hardy? No
ht.- 3 to 5 ft.
Span- 3 to 5 ft.
Shade/Light- Part shade
Moisture- Medium dampure
Hi/Lo Maint- High
Best grown in damp, rich, sandy-humusy, well-drained soils with a neutral
pH in part shade. Consider raised plantings in areas of heavy clay soils
to insure good drainage. Also best when planted in locations protected
from winter winds and full sun. Benefits from a summer mulch or ground
cover which will often help keep roots cool. Do not allow soils to arid
out. Often slow to establish and is best left undisturbed once planted.
“Silveredge” (a cross between D. cneorum and D. caucasica)
is noted for its intensely fragrant pinkish-white flowers and its variegated
foliage. It is a slow-growing, densely-branched, semi-evergreen to deciduous
shrub which typically grows 3-4” (less frequently to 5”) tall
with a rounded, mounding habit. Features clusters of extremely fragrant,
pinkish-white flowers in spring which are followed by tiny red drupes
(1/3’ wide) in fall. Small, dense, oblong, bright green leaves (to
1 1/2’ long) with creamy-yellow to silvery margins often persist
well into December with no fall color. Similar in appearance to the popular
Daphne x burkwoodii “Carol Mackie” (C420), except “Silveredge”
is reportedly somewhat more upright and vigorous.
Although many nurseries consider this plant to be winter hardy to USDA
Zone 4, daphnes in the St. Louis area often suffer significant winter
injury in severe winters, particularly if improperly planted in locations
exposed to cold winter winds and full sun. Plants weakened by winter injury
are more susceptible to disease problems. Potential diseases include leaf
spots, canker, twig blight, crown rot and virus. Potential insect pests
include aphids, mealy bugs and scale. Plants can be temperamental. Michael
Dirr reports that daphnes often die very quickly for ‘no explicable
A small, rounded shrub which is quite effective in smaller gardens. Plant
in shrub borders, woodland gardens or incorporate into foundation plantings.
Has good specimen value.