New England Aster (Symphyotrichum novae-angliae) - purple flowers, illustrated plant cardIllustration

New England Aster

Symphyotrichum novae-angliae

New England Aster blooms from August through November.

Bloom calendar
Bloom time
Aug–Nov
not yet checked
Hardiness
Zones 3–8
not yet checked
Sun
Full sun
not yet checked
Water
Moderate water
not yet checked
Mature size
4 ft × 2 ft
not yet checked
Type
Perennial
house classification

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

Growing New England Aster

Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 3–8. Expect it to reach about 4 ft tall and 2 ft wide at maturity, in roughly 1 year (not yet checked).

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

Verification
What this means

Generated by an earlier AI feature of BloomsEye and not yet checked against outside sources, its scientific name included, so treat every fact above as a starting point. An audit keeps its values consistent with the rest of the library, which is not the same as being right. The source-by-source check is working through the whole library in the open, and a checked plant says so in this row.

When to plant New England Aster

Plant New England Aster 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 5, the middle of its hardy zones 3 to 8, spring means April to June and fall means August or September. Once settled, it blooms from August to November.

Month-by-month timing for your zone is on the planting calendar; if you garden near zone 5, the middle of this plant's hardy range, start with zone 5 in April. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.

How big does New England Aster get?

Illustration of New England Aster drawn to scale beside an adult4 fttall5 ft 7 inan adult2 ftwide
About 4 ft tall and 2 ft wide at maturity: chest-high beside an adult.

See New England Aster 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 New England Aster

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

Space New England Aster about 2 ft apart, center to center, so each plant has room to reach its full width.

Plant them
2 ft apart
Per 10 sq ft
about 3
4 by 8 ft bed
about 8

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

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