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botanical name:
Magnolia liliflora 'Nigra'
Magnolia liliflora 'Nigra' © Deeproot Plant Base    view larger image
synonyms:  Magnolia x soulangeana 'Nigra'
family:  Magnoliaceae
characteristics: tree
height: 3.00m
width: 2.50m
growth rate: slow
growth habit: bushy
leaf colour: green
flower colour: purple
main season: Spring
aspect: full sun, part shade
conditions: 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.

other notes:
Introduced from Japan by J.G. Vietch in 1861.
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