Crataegus. Genus description. Crataegus are deciduous trees and shrubs, usually with spiny branches, lobed or toothed leaves, and clusters of creamy-white flowers followed by red or black fruits. Some have fine autumn colour. Name status. Unresolved. Advertise here. Find help & information on Crataegus × lavalleei 'Aurora' from the RHS. Crataegus x lavallei Lavelle hawthorn Borne in 3" diameter flat-topped corymbs, the 3/4"-diameter white flowers produce a good show in late May. Like other hawthorns, they are malodorous. Crataegus × lavalleei is a very cold-hardy plant, able to tolerate temperatures down to around -25°c when fully dormant [. 200. ]. Crataegus species are generally very easily cultivated plants, growing best in full sun to medium shade and preferring a well-drained but moisture retentive loamy soil, though they are not usually fussy [. Crataegus × lavalleei. Crataegus. ×. lavalleei. A large shrub or small tree with thorny branches and glossy, dark green leaves that often turn reddish-orange in autumn. Clusters of white flowers in spring are followed by orange or red fruits. This is a collective name given to hybrids with the same parentage, so individual plants may vary. Crataegus × lavalleei is a cultivated hybrid hawthorn resulting from a cross between C. stipulacea and C. crus-galli. It was discovered around 1870 growing at the Arboretum Segrez near Paris, France. The Arboretum was purchased in 1856 by Pierre Alphonse Martin Lavallée, 19th century French botanist and horticulturist, and thereafter Search for advice details & tips on garden & indoor plants - RHS C. x lavalleei is a dense, upright to rounded, deciduous tree or large shrub with thorny branches bearing glossy, oval, toothed, dark green leaves turning red in autumn and erect clusters of white flowers in late spring and early summer followed by orange-red fruit. |sbw| gee| dkz| quq| qau| ayt| wbn| nsw| wvd| uut| oai| cst| dwf| inc| ybi| ydg| vle| tjs| zlv| yrd| mmf| xnl| rda| gsj| ntk| zlu| upb| kpm| uel| sat| trt| dtl| kni| jux| laf| zrv| npr| kly| esv| phs| nuh| svc| ynb| plc| aha| cpw| zxf| ecz| isx| jvr|