|Standard Cyclopedia of Horticulture|
Caryopteris (Greek for nut and wing). Verbenaceae. Ornamental woody plants grown for their lavender-blue flowers profusely produced in autumn.CH
Deciduous small shrubs: lvs. opposite, short-petioled, serrate: fls. in axillary cymes; calyx campanulate, deeply 5-lobed with lanceolate teeth, spreading and somewhat enlarged in fr.; corolla 5-lobed, with short cylindric tube and spreading limb, 1 segm. larger and fringed; stamens 4, exserted, 2 of them longer; style slender, 2-parted at the apex: fr. separating into 4 somewhat winged nutlets.—About 16 species in E. Asia.CH
These are glabrous, pubescent or tomentose shrubs with small blue or violet late flowers. Free-flowering and very valuable for their late blooming season; not hardy North; even if well protected they will be killed almost to the ground, but the young shoots, springing up freely, will flower profusely the same season. CH
They require well-drained and sandy soil and sunny position; if grown in pots, a sandy compost of peat and leaf soil or loam will suit them, and they will flower in the greenhouse until midwinter.CH
Propagated readily by cuttings of half-ripened wood in summer or fall under glass, and by seeds sown in spring.CH
Pests and diseases
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Genus of 16 specieswp:
- Caryopteris aureoglandulosa (Vaniot) C.Y.Wu
- Caryopteris bicolor (Roxb. ex Hardw.) Mabb.
- Caryopteris divaricata Maxim.
- Caryopteris forrestii Diels
- Caryopteris glutinosa Rehd.
- Caryopteris grata Benth.
- Caryopteris incana (Thunb. ex Houtt.) Miq.
- Caryopteris jinshajiangensis Y.K.Yang & X.D.Cong
- Caryopteris mongholica Bunge - Lvs. lanceolate, almost entire: cymes with fewer but larger fls.CH
- Caryopteris nepetifolia (Benth.) Maxim.
- Caryopteris odorata (Ham. ex Roxb.) Rob.
- Caryopteris paniculata C.B.Clarke
- Caryopteris siccanea W.W.Smith
- Caryopteris tangutica Maxim.
- Caryopteris terniflora Maxim.
- Caryopteris trichosphaera W.W.Smith
The hybrid Caryopteris × clandonensis (C. incana × C. mongholica) is commonly grown; there are several cultivars, including 'Blue Mist', 'Heavenly Blue', 'Longwood Blue', and 'Dark Knight'.wp
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- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
- w:Caryopteris. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
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