Scientific Name:
Philadelphus
x
virginalis
Pronunciation:
fill-uh-DEL-fus ex vir-jin-AH-liss
Common Name:
virginal mock orange
Family Name:
Hydrangeaceae
Plant Type:
Shrub - deciduous
Key ID Features:
Tall upright shrub with exfoliating bark on upright stems, young stems glabrous; leaves opposite, blades 4-8cm long x 3-5cm wide, ovate, apex acuminate, base usually rounded, margins with 4-6 teeth, upper surface nearly glabrous but lower surface with dense hairs, petioles 5-10mm long; inflorescences usually cymose racemes or cymose panicles with (3-)5-7 double or semi-double florets, (3-)4-5cm wide, 5 petals to 16 (petals and petal-like stamens), sepals pubescent, style much shorter than the stamens, divided in the middle or nearly to the base, 6-8mm long, with
small stigmas, blooms June-July for about 2 weeks.
Habit:
Irregular, Stiffly upright
Form:
Vase
Texture:
Medium - coarse
Mature Height:
2 - 3m
Mature Spread:
2 - 3m
Growth Rate:
Fast
Origin:
Garden origin (possibly P. x lemoinei x P. nivalis 'Plena')
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Acidic, Well-drained
Landscape Uses:
Fragrance, Summer interest, Tall background, Woodland margin
Additional Info:
Google. Cultivars shown may include P. 'Minnesota Snowflake'
Leaf Morphology:
Form:
Simple
Arrangement:
Opposite
Texture/Venation:
Soft flexible
Surfaces:
Glabrous, Pubescent
Colour in Fall:
Yellow
Shapes:
Ovate
Apices:
Acuminate
Bases:
Rounded
Margins:
Serrate
Additional Info:
Leaf blades of specimens on campus grow up to 14 long x 7cm wide - confirm ID!
Inflorescence Type:
Raceme, Floriferous
Flower Morphology:
Flowers perfect
Number Of Petals:
4
Corolla Shape:
Rotate/stellate
Ovary Position:
Inferior
Colour (petals):
Showy, White
Flower Scent:
Fragrant, Spicy, Sweet
Flower Time at Peak:
Jun, Jul
Additional Info:
usually double
Fruit Type:
Capsule, Aborted (hybrids) or absent
Fruit Colour:
Green, Brown
Fruiting Time:
Sep, Oct
Additional Info:
Fruit insignificant,
Bark Morphology:
Exfoliating
Bark or Stem Colour:
Grey
Maintenance:
Low
Other:
Prune immediately after flowering (to ground level if necessary)
Pest Susceptibility:
(Pest resistant, Disease resistant, Rabbit resistant, Drought tolerant)
Course(s):
- HORT 1155
- CLT Training
Location(s):
- (JPL) Juglans PLanting : 139-confirm ID (only 4 petals, large leaves)
- (NRY) NuRserY : cv. Minnesota Snowflake
- (ONE) Overpass North side East : 657-confirm ID (only 4 petals, large leaves)