Philadelphus Avalanche (Mock Orange)
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.
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, and informal flowering hedges.
- 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
Requirements
Hardiness | 5 – 9 |
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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 |