Description
Philadelphus hybrid (P. microphyllus x P. coronarius) | Lemoine’s Mock Orange ‘Avalanche’
‘Avalanche’ Mock Orange is a deciduous, fast-growing hybrid shrub prized for its intense, sweet, citrus-like fragrance, and aptly named for the cascades of snow-white, citrus-scented 4-petaled blossoms that cover its arching branches in late spring and early summer. Introduced in 1896, it’s still regarded as one of the most fragrant of all Mock Oranges, with a sweet and intense aroma that’s reminiscent of orange blossoms. The blooms burst into life just when spring-blooming shrubs are finishing their display (late spring to early summer).
Its cascading habit makes it an excellent addition to mixed shrub borders, foundation plantings, and informal flowering hedges. It ultimately reaches just 4-5 ft tall and 5-7 ft wide, making it substantially smaller than its wild cousins, while still blooming while young, making it a great choice for newer gardens and impatient gardeners.
Plant in full sun to part shade. Loves moisture and prefers average, well-drained soil, but is quite drought-tolerant and adaptable to clay once established. It works great as an informal hedge, in a mixed garden border, or planted near windows, patios, and entryways where the fragrance can be fully appreciated.
Mock Oranges are generally not susceptible to any serious pests or diseases, they do well with little attention, and they’re easy to transplant, too. Pruning should only be done immediately after the bloom cycle finishes. Since they bloom on “old wood” (growth from the previous year), trimming in late summer or fall could cut away next year’s flower buds. However, cut branches make excellent, long-lasting floral arrangements.
Deer-resistant and pollinator-friendly.
Type: Perennial
Sun exposure: Full sun to part shade
Mature height: 4-5 ft
Mature width: 5-7 ft
Hardiness zones: 5-8
UNROOTED CUTTINGS:
- Price is for five cuttings (5)
- Each cutting is 4-9 inches long. May be single top or multi-top.
- Guaranteed to be green, healthy, and alive. Plus pest and pathogen free.
- Guaranteed to be true-to-name.
- Please only order unrooted cuttings if you are familiar and comfortable with rooting plants
- If it’s believed the plants are not alive and healthy when you receive them you must let us know any concerns you have within 24 hours of arrival. If we do not hear any concerns within 24 hours it will be assumed that everything arrived in good standing. We cannot be held responsible for mishaps, errors, mistakes, or bad luck after this time frame.
ROOTING INSTRUCTIONS:
How to prepare cuttings to root via rooting cubes inside a humidity dome.
- Upon arrival, give cuttings a new fresh cut on the bottom of the stem. Then set in a cup of water for a minimum of 15 minutes.
- After soaking, gently cut or scrape small marks into the bottom portion of the plant stem (½ inch) with scissors or a razor blade.
- Dip the scarred end of the stem into rooting gel or rooting powder (gel is superior). This can be done without rooting gel, but results are not as good.
- Insert the plant stem into a rooting cube (Oasis cubes, grow plugs, soil-cubes, rock-wool cubes, etc) and place into a nursery tray with a humidity dome over the top. One cutting per cube. Custom individual humidity domes can be made using plastic cups and/or plastic cling wrap.
- After the first 3-5 days, the humidity dome should be opened up or set ajar to slowly allow more air in as the plants start to root. At this point, the cubes should be allowed to become mostly dry before adding any more water.
- Once 2-3 roots grow out of the bottom of the root-cube, the plant can be transplanted into soil.
- More detailed rooting instructions will accompany your order.
We ship plants orders out on Mondays and Tuesdays only.











