Lemoine's Deutzia (Deutzia x lemoinei)

Common names:
Give a thumbs up Lemoine's Deutzia
Give a thumbs up Deutzia

General Plant Information (Edit)
Plant Habit: Shrub
Sun Requirements: Full Sun
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 4b -31.7 °C (-25 °F) to -28.9 °C (-20 °F)
Maximum recommended zone: Zone 8b
Plant Height: 5 to 7 feet
Plant Spread: 5 to 7 feet
Leaves: Deciduous
Flowers: Showy
Flower Color: White
Flower Time: Late spring or early summer
Other: late May
Wildlife Attractant: Bees
Butterflies
Resistances: Deer Resistant
Rabbit Resistant
Drought tolerant
Propagation: Other methods: Cuttings: Stem
Pollinators: Moths and Butterflies
Bees
Miscellaneous: Tolerates poor soil
Monoecious
Parentage: Deutzia gracilis x Deutzia parviflora

close-up of flowers

Photo gallery:
Location: Chester Springs, PennsylvaniaDate: 2012-05-10close-up of flowers
By ILPARW
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Location: Chester Springs, PennsylvaniaDate: 2012-05-10lightly sheared specimen
By ILPARW
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Comments:
Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Oct 10, 2018 10:45 AM

This is a hybrid raised in Nancy, France in 1891 by Mr. Lemoine in his Lemoine Nursery from crossing the Slender Deutzia x the Small-flowered Deutzia, both from East Asia where this genus comes from. The genus of Deutzia is closely related to the Mockoranges (Philadelphus) but having 5-petal flowers rather than 4 petal flowers. They are densely twiggy shrubs that eventually need deep proper pruning to keep them from becoming unkempt. Best to prune right after they flower because the genus produces blooms on the last year's wood. My old woody plant teacher , Dr. Michael Dirr, never really was enthusiastic about Deutzias as he considered the foliage as blasé, no real fall color, uninteresting dry brown fruits, no wonderful bark, and the plant becomes unkempt in time so that dead wood must be removed annually. It only has pretty flowers and that is it. He thought they were alright for a larger landscape for a good bloom. I remember several Lemoine Deutzia planted together in Bolingbrook, Illinois where the tan stems did look very interesting in the winter. I wish I still had that photo from the 1990's. Some larger nurseries in the Chicago area do offer this Lemoine Deutzia, but it is not commonly planted, just occasionally here and there. It is usually some landscape architects or designers that will use some. A few are sold to homeowners at some nurseries.

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