Magnolia liliiflora 'Nigra'
Black Lily Magnolia
Magnolia x soulangeana 'Nigra'
Color: Deep purple
Bloom Time: Late spring
Magnolia liliiflora 'Nigra' is a spreading, medium-sized deciduous shrub, up to 13 feet (4 m) tall, with glossy elliptic, up to 8 inches (20 cm) long leaves. Flowers are erect, narrow, and fluted in the bud, deep purple outside, opening to reveal creamy-white stained purple insides. Flowering from late spring, the shrub continues to flower intermittently through the summer.
USDA hardiness zone 5a to 9b: from −20 °F (−28.9 °C) to 30 °F (−1.1 °C).
How to Grow and Care
Although different species of Magnolia can tolerate slightly different conditions, in general, they will do best with slightly acidic, moist, loose, well-draining soil. To mimic Magnolia's natural conditions, amend heavy soil with peat moss and compost. Grow best in Zones 7-10, depending on variety, with a few cultivars hardy to zone 5. Full sun to partial shade. Moist, peaty soil can help Magnolias tolerate the full sun. If you're pushing the limits of cold tolerance, avoid planting Magnolias in southern exposure since the leaves can be damaged by winter sun and flowers may open prematurely. Magnolias benefit from irrigation in the first few years, and then they are tolerant of moderate drought.
They need room to grow to their full mature size and width. While looking small when first planted, over time, they'll grow to fill up space.
Some varieties of Magnolia don't bloom until 15 years old, so be sure to choose one that fits your needs and expectations. Grafted plants (rather than seed-grown) bloom sooner. See more at How to Grow and Care for Magnolias.
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