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Chinese magnolia

Magnolia ×soulangiana · Magnoliaceae

Chinese magnolia (Magnolia ×soulangiana)
Photo: Piotr Kuczynski · CC BY-SA · via Wikimedia Commons

Chinese magnolia (Magnolia ×soulangiana) is a perennial tree in the Magnoliaceae family. It is introduced to North America rather than native. USDA records it as hardy in zone 6 and warmer, down to about -8°F.

At a glance

Typetree Derived
Lifecycleperennial USDA
Native statusintroduced USDA
Mature height30 ft USDA
Lightfull-sun USDA
Water needmedium USDA
Growth ratemoderate USDA
Soil pH5–6.2 USDA
BloomMarch–April USDA
Flower colorPurple USDA
Hardiness zones6 and warmer USDA
Guild layerunderstory Derived
Nursery availabilityRoutinely Available USDA

USDA quoted from the USDA PLANTS database · Derived computed by a fixed rule from those columns. No value on this page is estimated.

Growing conditions

It needs full sun. USDA rates it as having moderate water needs. Its drought tolerance is rated low. It will not tolerate waterlogged soil — USDA rates its anaerobic tolerance as none. It is recorded on soils from pH 5 to 6.2 — acidic ground. Its cold limit is zone 6.

Size and growth

At maturity it reaches about 30 ft, making it a substantial woody plant. It grows at a moderate rate.

Bloom period

USDA records a bloom period of March through April. Flowers are purple.

A flowering date, not a pollinator rating.

Foliage, flower and season

Summer foliage is dark green, coarse in texture. Its flowers are conspicuous. Its fruit or seed heads are conspicuous, extending interest past flowering. Its active growth period is spring. USDA rates its lifespan as long.

What the site needs to provide

USDA records it across sites receiving 35 to 60 inches of annual precipitation. It needs at least 160 frost-free days to finish its season. It roots to at least 24 inches. Fertility requirement: medium.

Propagating it

It takes readily from seed, cuttings, bare root and container stock. Seed needs cold stratification — a period of moist chilling — before it will germinate, so sow in autumn or chill it artificially before a spring sowing. It does not spread vegetatively, so it will stay where you put it.

Resilience and wildlife

Its fire tolerance is rated none. Its growth form is recorded as single stem.

Role in a guild

Understory. In a layered planting this is the layer beneath the canopy, tall enough to hold structure but shaded from above. The layer is derived by a fixed rule from growth habit and mature height.

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Tags

deciduousacidic-soilintroducedfull-sun

Related plants

Others in Magnolia

Similar role and hardiness

Where this data comes from

Every value on this page comes from the USDA PLANTS database record for symbol MASO9, or is computed from those values by a fixed rule. Nothing here is estimated or model-generated. Where USDA publishes no value, this page omits the claim rather than filling the gap.

Read our full data sources and methodology.

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