Philadelphus lewisii

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Growing Info

Scarification: none required

Stratification: cold stratify for 30 days

Germination: surface sow and keep moist, tamp the soil, mulch the seed bed

Native to: Alberta, British Columbia, Idaho, Montana, Oregon, Washington

Native

Introduced

Philadelphus lewisiiPhiladelphus lewisii

Lewis' Mock Orange

In Stock: 0.502 lb (Total:0.502lb)

Philadelphus lewisii

Calculate

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Buying options

0.5 lb MT

Details

Germination:

30%

Germination test:

estimate

Purity:

99%

Seeds per lb:

1,980,000

Quantity:

0.5 lb

Collected in:

Montana

Crop year:

2024

Min. hardiness zone:

Item ID:

1835248

Characteristics

Growing Info

Scarification: none required

Stratification: cold stratify for 30 days

Germination: surface sow and keep moist, tamp the soil, mulch the seed bed

Native to: Alberta, British Columbia, Idaho, Montana, Oregon, Washington

Native

Introduced

Discover the allure of Philadelphus lewisii, commonly known as Lewis' Mock Orange or Mock Orange, an exquisite yet underutilized native shrub perfect for late spring and early summer gardens. Designated as Idaho's state flower, its name reflects the enchanting orange fragrance that captivates both bees and humans. From late May to early July, its tall, arching branches burst with abundant snow-white flowers, featuring four petals and pale yellow centers. Even after the petals drop, sepals remain, resembling a second bloom, adding prolonged visual interest.

Mock Orange thrives across diverse habitats, from moist woodlands to dry rocky slopes, demonstrating impressive drought tolerance and resilience in USDA Zone 4. Reaching heights of 6-14 feet, this deciduous shrub offers stunning golden fall foliage and sustained seasonal support for pollinators and wildlife.

Plant it as a fragrant backdrop or hedgerow, taking advantage of its robust growth and ease of care. Featuring white blossoms that attract bees, butterflies, and beneficial insects, it also provides nectar to nocturnal moths and supports birds and small mammals with seeds. To maintain its charming form, practice annual post-bloom pruning, removing select older stems to stimulate vigorous new growth for next year’s blooms.