Alphabetical Plant Listing

Philadelphus 'Avalanche' (Mock Orange)

Mock Orange 'Avalanche', Philadelphus lemoinei 'Avalanche'


Regarded as one of the most fragrant of all Mock Oranges, Philadelphus 'Avalanche' is a multi-stemmed deciduous shrub of great beauty when in bloom. In late spring to early summer, its pleasantly arching branches bear clusters of cup-shaped, 4-petaled, white flowers, 1 in.across (2.5 cm), at their tips. The blossoms stand out against the foliage of oval, dark green leaves. Introduced in 1896, 'Avalanche' is a lovely flowering shrub that deserves a spot where its fragrance can be enjoyed.

  • Grows with an upright, arching habit to 4-5 ft. tall (120-150 cm) and 5-10 ft. wide (150-300 cm).
  • A full sun to light shade lover, this plant is best grown in average, medium moisture, well-drained soils. This plant is not fussy about soils as long as they have good drainage. Drought tolerant.
  • Generally pest and disease free. Watch for leaf spot, canker, powdery mildew and rust.
  • Great for shrub borders, foundation plantings, informal flowering hedge.
  • Blooms on previous year’s wood, so prune immediately after flowering. May be cut to the ground to rejuvenate this shrub.
  • Propagate by softwood or hardwood cuttings

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Requirements

Hardiness 5 – 9
Heat Zones 5 – 8
Climate Zones 2A, 2B, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17
Plant Type Shrubs
Plant Family Philadelphus - Mock Oranges
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 4' – 5' (120cm – 150cm)
Spread 5' – 10' (150cm – 3m)
Spacing 120" (300cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Clay Soil, Drought
Garden Uses Beds and Borders, Hedges and Screens
Garden Styles City and Courtyard, Coastal Garden, Informal and Cottage

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fotodanad / 123RF Stock Photo

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 5 – 9
Heat Zones 5 – 8
Climate Zones 2A, 2B, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17
Plant Type Shrubs
Plant Family Philadelphus - Mock Oranges
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 4' – 5' (120cm – 150cm)
Spread 5' – 10' (150cm – 3m)
Spacing 120" (300cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Clay Soil, Drought
Garden Uses Beds and Borders, Hedges and Screens
Garden Styles City and Courtyard, Coastal Garden, Informal and Cottage

Great Plant Combination Ideas with Philadelphus - Mock Oranges

Guides with Philadelphus - Mock Oranges

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