Magnolia

Magnolia × soulangeana · Tree/Shrub

A spectacular flowering tree whose large, goblet-shaped blooms open on bare branches in early spring. It grows slowly, needs little pruning and dislikes root disturbance, so choosing the right spot from the start matters.

Care at a glance

Light

Full sun to part shade, 4–6+ hours

Water

1 in per week for the first two years; mulch to keep roots cool

Soil

Moist, rich, slightly acidic, well-drained; pH 5.5–6.5

Temperature

Hardy to about -20 °F; late frost can brown flowers

Spacing

15–25 ft from buildings and other trees

Container

Compact types in 20+ gallons

Bloom

Blooms early to mid spring

Lifespan

50–100+ years (estimated)

When?

Plant in spring or early autumn while the soil is warm. Avoid frost pockets and spots facing early morning sun, which can scorch frosted buds.

Step by step

1. Choose a sheltered spot out of strong wind and with room for the final spread.
2. Dig a wide, shallow hole and work in compost or leaf mold.
3. Plant at the same depth as in the pot; the fleshy roots resent burying.
4. Water deeply and spread 2–3 in of mulch over the root area.
5. Do not dig or plant underneath; the roots are shallow and easily damaged.
6. Prune only if needed, just after flowering, removing dead or crossing branches.
7. Feed lightly in spring with an ericaceous fertilizer on alkaline soils.

Common problems

Pets

Generally considered non-toxic to cats and dogs. If in doubt, ask your vet.

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