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Magnolia liliflora 'Nigra'
synonyms: Magnolia x soulangeana 'Nigra'
growth rate: slow
growth habit: bushy
leaf colour: green
flower colour: purple
main season: Spring
full sun, part shade
moist soil, clay soil
preferred soil pH: neutral-acid
minimum temp: -18°C
USDA zone: 7 to 10
Large shrub or small tree of compact habit. Goblet-shaped, dark reddish purple flowers, paler inside, freely produced from late spring to early summer and often intermittently repeat flowering until autumn.
Moist, reasonably fertile, humus-rich, acid to neutral soil. Will thrive in heavy clay and tolerant of atmospheric pollution. Best in a sheltered position in sun or part shade.
If required, prune unwanted or crossing branches when dormant in autumn or late winter to very early spring.
Introduced from Japan by J.G. Vietch in 1861.