Ann Magnolia (Magnolia 'Ann') - purple flowers, illustrated plant cardIllustration

Ann Magnolia

Magnolia 'Ann'

Ann Magnolia blooms from April through May.

Bloom calendar
Bloom time
Apr–May
checked
Hardiness
Zones 4–8
checked
Sun
Full sun
checked
Water
Moderate water
checked
Mature size
11 ft × 10 ft
checked
Type
Tree
house classification

Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.

Growing Ann Magnolia

Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 4–8. Expect it to reach about 11 ft tall and 10 ft wide at maturity, in roughly 12 years (a house reading).

No toxicity note is on file for Ann Magnolia. That is not a clearance: check its safety for people and pets before planting.

Verification
What was checked

Mature height and spread, hardiness zones, sun, water, bloom months and color and the trait tags were checked against named botanical sources for this plant, with what the sources could not settle written down; years to mature size rests on a recorded house rule where no publisher states one, and is marked so; its common name and alternate names have not been checked yet. Each fact above carries its own mark. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.

See the 18 sources it was checked against

When to plant Ann Magnolia

Plant Ann Magnolia in early spring as soon as the soil is workable, or in early fall at least six weeks before your first frost, so roots establish in cool weather. In zone 6, the middle of its hardy zones 4 to 8, spring means March to May and fall means August or September. Once settled, it blooms from April to May.

Month-by-month timing for your zone is on the planting calendar; if you garden near zone 6, the middle of this plant's hardy range, start with zone 6 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.

How big does Ann Magnolia get?

Illustration of Ann Magnolia drawn to scale beside an adult11 fttall5 ft 7 inan adult10 ftwide
About 11 ft tall and 10 ft wide at maturity: about twice as tall as an adult.

See Ann Magnolia in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.

How far apart to plant Ann Magnolia

Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.

Give Ann Magnolia about 10 ft of clear ground in every direction, measured from its center. It is one plant with room around it, not a row, and a raised bed is too small for it.

Clear ground around it
10 ft in every direction

Add Ann Magnolia to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.

Where these facts come from

Ann Magnolia's height, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases, pests and toxicity were checked against 18 published sources on August 24, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources.

How the checking works, and what each standard covers, is on the verified plants page.

The Magnolia group

One of 13 in the Magnolia group. Same genus, similar care.

Explore similar plants

You might also like

Design a garden with this

Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.

Design a garden with this →