"David J Bockman" wrote in message
...
Vox, here's an info dump from my field notes on both Viburnums.... There's
a
Shasta at the National Arboretum that is about 15 feet wide and 10-12 feet
tall....

Viburnum plicatum var. tomentosum, Doublefile Viburnum
Zones: 5-8
Habit: 8-10" in height usually wider, horizontal, tiered branching
structure
can be arresting in winter, broad-rounded in form w/ stratified
appearance.
They do get wider and taller than literature says...
Leaves: opposite, broad-ovate, 2-4"long, ½ as wide w/ strongly
dentate/serrate edges, rounded to cordate at base. Acuminate. Veins are
impressed giving ridged and furrowed effect. Leaves tend to hang down or
droop in heat of summer.
Flowers: white, outer flowers sterile, inner fertile and not showy, giving
a
'lacecap' appearance, May bloom lasting about 2 weeks, flowers are borne
on
2" peduncles held above foliage so that they are layered above horizontal
branches. "A choice specimen of doublefile Viburnum is without equal"!
ala
Dirr. Red-reddish-purple fall color is outstanding.
D&I: none serious
Cultivars:
'Shasta' - Another famous Don Egolf hybrid, w/ broadly horizontal
branching,
twice as wide as high - 6' high x 12' wide (check out one of original
specimens at Court of Honor (National Arboretum) - 10' high or more in
south, despite literature saying 6'! Profuse and large flowers are 4-6"
in
diameter, larger than other cultivars and prolifically produced along
branches. Bright red fruit in July (I find that this is variable and don't
often see abundant fruit displays). Beware of mislabeled specimens in
nursery trade.
'Shoshoni" seedling of Shasta -same as Shasta but on a smaller scale, 5' x
8
' at 17 yrs. Good for small gardens, shrub borders. Same fabulous form
and
showy flowers.
'Summer Snowflake' - ( same as Watanabe) more upright, small doublefile
vib.
w/ heaviest flowers in spring and intermittent bloom thereafter thru
growing
season. Reaches 4-5'+ high with upright oval habit, and as Pam Harper
says,
it has a narrowed 'waist', somewhat like an hour glass shape! Needs
watering in droughts. This cultivar is great for smaller gardens,
although
the flowers are smaller and less prolifically produced there are flushes
of
bloom through summer and fall. I find that fall color is not notable in
the
four specimens I have planted.
'Mariesii' - old stand-by, still beautiful, large flowers carried well
above
foliage are quite showy, well over 10' high and again some find heavy
fruiting while others report scarce fruit display. Perhaps more than one
cultivar or specimen is needed for good fruit display as in many
viburnums,
although literature is inconclusive on this point.
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V .x burkwoodii (Cross of V. carlesii and V. utile)
Viburnum x burkwoodii, Burkwood Viburnum
'Mohawk', 'Chenault'
Leaves: Semi-evergreen; opposite, elliptic, 1-1/2 - 4" long, irregularly
toothed, lustrous dark green above, a bit rough to the touch, lighter and
tomentose below, veins often rusty-pubescent. Some leaves take on red
fall
color but typically hold late.
Habit: 8 - 10' high and wide, upright, multi-stemmed shrub, rather open
and
can be 'tangled and scraggly'.
Flowers: Pink ii buds opening to white flowers, quite fragrant and spicy
in
April in hemispherical cymes 2 - 3" across.
Fruit: red changing to black, 1/3" diam. Ellipsoidal in shape in late
summer, sparsely produced with limited ornamental value.
Uses: fairly attractive, fragrant and semi-evergreen with nice lustrous
small foliage. Withstands and blooms in a lot of shade.
'Chenault' - very confused and probably same as x burkwoodii, smaller
leaves , bit more compact and very floriferous.

'Mohawk' - Backcross of V. x burkwoodii x V. carlesii in 1953 by D. Egolf.
This cultivar has created a lot of good comments and attention. Notable
for
long lasting polished dark red flower buds extending season of floral
display to a few weeks, opening to white petals w/, deep-pink to red
reverse. Strong, spicy clove scent, abundant flowers.
Form: supposedly compact growth habit - 7'(8) x 71/2' height and wide. In
my
experience this cultivar does get large and somewhat open and rangy - not
as
dense or handsome as V. carlesii or juddii in my opinion. I have also
noted
that the flowers of carlesii come into bloom about a week or more before
and
last longer than V. x 'Mohawk'
Leaves: glossy , dark green leaves are somewhat similar to V. carlesii in
shape and color, but much glossier and darker true green to me. Obovate
and
finely and irregularly toothed. Fall color supposedly good orange-red w/
clean leaf fall in Nov. but not in my experience -I find that leaves are
semi-evergreen and only some interior leaves turn color; not a very
stirring
show. Foliage resistant to powdery mildew and leaf spot bacteria.
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Also lots of good information on Viburnums at Dirr's website,
nobleplants.com


Thanks. I enjoyed the information at the link you provided.