The illustrated growing guide
New England Aster
Symphyotrichum novae-angliae
Family Asteraceae
Est. zones 3-8

The finale of the pollinator year — when almost everything else is done, New England aster explodes in purple and feeds migrating monarchs and the season's last bees. It's tall and can flop, so cut it back by half in June for a dense, self-supporting mound. Native across most of the country and essential fall forage.

From the print shop
Growing new england aster? Hang it.
Our Wildflowers Vol. 2 collection carries new england aster — Symphyotrichum novae-angliae, print Nº 16, “New England Aster.”
16 designsfrom $21.99white or black groundmatte poster, unframed
I
Overview
Will new england aster suit your garden, and what goes wrong.
Will it fruit where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what new england aster actually needs.
New England Aster at a glance
Common new england aster problems
- Almost none
- Powdery Mildew (mildew-resistant cultivars help)
- Rust
II
Growing
Light, water, soil, propagation and the season’s jobs.
How to grow new england aster: light, water & soil
How to plant & propagate new england aster
When to spray new england aster
Growing season. 'Chelsea chop' + airflow reduces mildew.
III
The year
What new england aster asks for, month by month.
The new england aster year, month by month
What each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
- Prune — shape it now — cuts heal cleanly and structure is visible.
The new england aster year as text
- Jan pruning
- Feb pruning
- Mar pruning
- Apr pruning
- May pruning
- Jun quiet month
- Jul quiet month
- Aug quiet month
- Sep bloom
- Oct bloom
- Nov quiet month
- Dec pruning
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
IV
Ecology & uses
What it does for the garden, and what it is grown for.
New England Aster in the garden system
- Herbaceous layer perennial
- Nectary/insectary
- Hosts Pearl crescent butterfly
- Keystone: Keystone perennial — hosts 100+ caterpillar species
What new england aster is grown for
✓ Commonly eaten
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
V
Cultivars
Named varieties of new england aster, ruled as a catalogue.
Best new england aster varieties & cultivars
'Purple Dome' (compact, mildew-resistant); 'Alma Potschke' (hot pink); 'September Ruby'
VI
Sources & plant ID
Where the care distinctions come from, and how the plant is filed.
Research basis
Sources behind this profile
No extension citations are attached to new england asteryet. The care figures below come from the library's own catalogue rather than a traced primary source.
Plant ID
VII
Where to buy
Third-party nurseries — not Story Thyme Farms.
Third-party nurseries, not Story Thyme Farms. Prices are theirs.
Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.
VIII
Questions
New England Aster questions, answered straight.
Is new england aster safe for kids and pets?
New England Aster is commonly eaten and isn't considered toxic, but "commonly eaten" isn't a guarantee for any particular person or animal — allergies, quantity, and which part you eat all matter. Never eat a plant you haven't positively identified, and check with a vet before letting pets or livestock graze anything new.
How do you propagate new england aster?
Division or seed.
IX
Elsewhere
Where new england aster sits in the library.
Sunflower
Zinnia
Peony
Daylily