Philadelphus lewisii, the Lewis' mock-orange, mock-orange, Gordon's mockorange, wild mockorange,[1] Indian arrowwood, or syringa,[2] is a deciduous shrub native to western North America, and is the state flower of Idaho.

It is native from southern British Columbia to the Sierras of central California, to Idaho and Montana in the east. It is the only common Philadelphus species in the northwest; but it is extremely variable in vegetative and floral characters; a tall form west of the Cascades that has more hairy leaves is sometimes identified as var. gordonianus.

Philadelphus lewisii is the state flower of Idaho. It makes a great background shrub or specimen plant. Plant it close to paths, windows, or entryways to enjoy the fragrant blossoms! Grows up to 5-12 ft. tall (150-360 cm) and 6-12 ft. wide (180-360 cm).

Flowers white, 4 (5)-petals, yellow anthers, 4 cm across, 3-11 per cluster, fragrant. Fruit a 4-cell capsule. Sun to part shade, understory plant, thrives in almost any garden soil, prune after flowering.

Gordon’s mockorange or Philadelphus gordonianus is now classified as the same species. There are at least 8 subspecies and varieties. Other common names include syringa, Indian arrowwood, and wild mockorange. Lewis’ mock orange and mock-orange are alternative spellings.

Philadelphus Lewisii (Mock Orange Plant) deciduous shrub, multi-stemmed, arching branches, oval green leaves, reddish-brown bark, scented flowers. [DETAILS]

Lewis' Mock Orange, Lewis' Mockorange, Wild Mockorange, Mock-orange, Mock Orange. An upright, loosely-branched, deciduous shrub with large fragrant white flowers which grows along coastal bluffs and rocky slopes, in open forests and disturbed areas, and along forest edges, openings, or clearings. Plant Type: Shrub.

Mar 6, 2024 · Wild Mock Orange, also known as Philadelphus lewisii, is a bush that grows in a fountain shape. It has long, bending branches covered with soft green leaves that turn yellow in the fall. During late spring to early summer, it blooms with lots of very fragrant white flowers shaped like cups.

Native of western N. America from British Columbia to Oregon; introduced about 1823. It is one of the most elegant and floriferous of all the taller species. Philadelphus lewisii is a good choice of Philadelphus for hot dry sites (University of British Columbia Botanical Garden, Vancouver, June 2023). Image John Grimshaw.

Jun 3, 2014 · Found in open forests in low-mid elevations, Philadelphus lewisii is highly adaptable to the garden where it becomes a large shrub and requires only well-drained soil, moderate moisture, and full sun to part shade.