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Raised garden bed I – solid 2⅜ in European larchRaised garden bed IRaised garden bedsRaised garden bed L – solid 2⅜ in European larchRaised garden bed LRaised garden bedsRaised garden bed U – solid 2⅜ in European larchRaised garden bed URaised garden bedsBed I with bench – solid 2⅜ in European larchBed I with benchRaised garden bedsBed L with bench – solid 2⅜ in European larchBed L with benchRaised garden bedsSolid bench – solid 2⅜ in European larchSolid benchSeatingPedestal bench – solid 2⅜ in European larchPedestal benchSeatingBench with planter – solid 2⅜ in European larchBench with planterSeatingGarden table – solid 2⅜ in European larchGarden tableSeatingTable and two benches – solid 2⅜ in European larchTable and two benchesSeatingSandbox with seating – solid 2⅜ in European larchSandbox with seatingFor kidsGarden steps – solid 2⅜ in European larchGarden stepsSlope & terrace

By project

Brick Premium bedsSeatingKids’ cornerSlope & terraceCustom-size bedLow wall & slopeBed for the patio
Choose your climateBased on winter hardiness only.

Perennial · Asteraceae family

New England aster

Symphyotrichum novae-angliae

Full sun to part shade 2 ft 11⅜ in–5 ft 10⅞ in × 11¾ in–2 ft 11⅜ in Flowers August–October to −90 °F
Flower colors Click a color

In short a 10-second read

SunFull sun to part shade
Size2 ft 11⅜ in–5 ft 10⅞ in
spacing 22¾ in
FlowersAugust–October
PlantingMarch–May, September–November
WinterNo winter protection

Where to plant and how much to water

Sun, soil and water.

It grows best in full sun to part shade, in average to moist soil.

Sun

Sun6 hours or more
Part shade3–6 hours
Shadeunder 3 h

Soil

acidic to neutral soil
acidicneutralalkaline
average to moistnot fussy about soil

Watering

keep the soil evenly moistless when it rains

Frost

−90 °F
no winter protectiondies back in winter, regrows in spring

How much space it takes

Mature size.

The mature plant next to a person (69 in).

19¾ in3 ft 3⅜ in4 ft 11 in2 ft 11⅜ in–5 ft 10⅞ inspread 11¾ in–2 ft 11⅜ in
2 ft 11⅜ in–5 ft 10⅞ in× spread 11¾ in–2 ft 11⅜ in

Plant 22¾ in apart.

Reaches maturity in about 2–5 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.

Calendar

Through the year.

Typical for a temperate climate (four seasons). The line shows the current month.

The year at a glance

Flowers: JanuaryFlowers: FebruaryFlowers: MarchFlowers: AprilFlowers: MayFlowers: JuneFlowers: JulyFlowers: AugustFlowers: SeptemberFlowers: OctoberFlowers: NovemberFlowers: DecemberPlanting: JanuaryPlanting: FebruaryPlanting: MarchPlanting: AprilPlanting: MayPlanting: JunePlanting: JulyPlanting: AugustPlanting: SeptemberPlanting: OctoberPlanting: NovemberPlanting: DecemberFeeding: JanuaryFeeding: FebruaryFeeding: MarchFeeding: AprilFeeding: MayFeeding: JuneFeeding: JulyFeeding: AugustFeeding: SeptemberFeeding: OctoberFeeding: NovemberFeeding: DecemberCare: JanuaryCare: FebruaryCare: MarchCare: AprilCare: MayCare: JuneCare: JulyCare: AugustCare: SeptemberCare: OctoberCare: NovemberCare: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
FlowersPlantingFeedingCare
Now, in October: a good time for planting (container plant).
JanFebMarAprMayJunJulAugSepOctNovDec

Flowers

JanFebMarAprMayJunJulAugSepOctNovDec

August–October · purple or pink

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: March–May, September–November

Feeding

JanFebMarAprMayJunJulAugSepOctNovDec

March–May

Care

JanFebMarAprMayJunJulAugSepOctNovDec

pinch out the tips (May–June)

Feeding

Nutrition.

Light
balanced fertilizercompost or mulch
JanFebMarAprMayJunJulAugSepOctNovDec

Pests and diseases

Common problems and what to do.

The most common problems in Central Europe. Protection is listed from the gentlest option.

High riskMedium riskLow riskRisk for this plant according to the source · no label = no documented level

What you will see

White powdery coating on leaves and stems.

The source says: it is among the ornamental plants susceptible to powdery mildew.

When to look

From spring onwards

How to protect

  1. Prevention
    • Airy planting, enough space between plants.
    • Do not wet the leaves.
    • In fall, remove fallen diseased leaves (reduces spores in spring).
  2. By hand as soon as the first symptoms appearRemove and destroy affected leaves; do not compost.
  3. Chemical — only when nothing else helps only after cultural measuresOnly minimal and targeted use; a product authorized in your country against powdery mildew.
Powdery mildewsdisease · from spring onwardsMedium risk

What you will see

White powdery coating on leaves and stems.

The source says: it is among the ornamental plants susceptible to powdery mildew.

When to look

From spring onwards

How to protect

  1. Prevention
    • Airy planting, enough space between plants.
    • Do not wet the leaves.
    • In fall, remove fallen diseased leaves (reduces spores in spring).
  2. By hand as soon as the first symptoms appearRemove and destroy affected leaves; do not compost.
  3. Chemical — only when nothing else helps only after cultural measuresOnly minimal and targeted use; a product authorized in your country against powdery mildew.
More about this problem

Gray mold

Botrytis cinerea
Medium riskdisease
More about this problem

What you will see

Gray mold coating on dying parts.

The source says: it is among the perennials susceptible to gray mold.

How to protect

  1. Prevention
    • Airy planting; do not wet the leaves.
  2. By hand once noticedRemove affected parts.
Gray molddiseaseMedium risk

What you will see

Gray mold coating on dying parts.

The source says: it is among the perennials susceptible to gray mold.

How to protect

  1. Prevention
    • Airy planting; do not wet the leaves.
  2. By hand once noticedRemove affected parts.
More about this problem

What you will see

Chewed, holey young leaves.

How to protect

  1. Prevention
    • Check new growth in spring.
    • Encourage natural enemies (birds, hedgehogs, frogs).
  2. By hand in spring during growthCollect in the evening by torchlight.
  3. Biological April–JuneEncourage predators; Phasmarhabditis nematodes (where available).
Slugs and snailspest

What you will see

Chewed, holey young leaves.

How to protect

  1. Prevention
    • Check new growth in spring.
    • Encourage natural enemies (birds, hedgehogs, frogs).
  2. By hand in spring during growthCollect in the evening by torchlight.
  3. Biological April–JuneEncourage predators; Phasmarhabditis nematodes (where available).
More about this problem

What you will see

Clusters of aphids on young shoots, sticky leaves.

How to protect

  1. Prevention
    • Check new growth.
  2. By hand when they appearWash off with a strong jet of water or remove by hand.
  3. Biological spring–summerEncourage ladybirds, lacewings, hoverflies.
  4. Gentle spray in a heavy infestationPotassium soap.
Aphidspest

What you will see

Clusters of aphids on young shoots, sticky leaves.

How to protect

  1. Prevention
    • Check new growth.
  2. By hand when they appearWash off with a strong jet of water or remove by hand.
  3. Biological spring–summerEncourage ladybirds, lacewings, hoverflies.
  4. Gentle spray in a heavy infestationPotassium soap.
More about this problem

What you will see

Distorted leaves and buds, dying tips.

How to protect

  1. Prevention
    • Healthy planting stock.
  2. By hand once noticedRemove and destroy affected plants.
Leaf and bud eelwormspest

What you will see

Distorted leaves and buds, dying tips.

How to protect

  1. Prevention
    • Healthy planting stock.
  2. By hand once noticedRemove and destroy affected plants.
More about this problem
Sources (4)

What to combine it with

Same needs, different flowering.

They share the same sun and soil and flower in other months — so the bed flowers for longer.

Japanese holly

Japanese holly

4 ft 11 in–9 ft 10⅛ in
✓flowers May–June
✓taller — for the back
Japanese spirea

Japanese spirea

3 ft 3⅜ in–5 ft 10⅞ in
✓flowers June–July
✓lower — for the front
weigela

weigela

5 ft 10⅞ in–9 ft 10⅛ in
✓flowers May–June
✓taller — for the back

Frequently asked

Quick answers.

When does New England aster flower?

In August–October; the flowers are purple or pink.

Does New England aster tolerate shade?

It tolerates part shade (3–6 hours of sun), but not full shade.

How much space does New England aster need?

At maturity 11¾ in–2 ft 11⅜ in wide and 2 ft 11⅜ in–5 ft 10⅞ in tall; recommended spacing 22¾ in.

Powdery mildews — what can you do?

Airy planting, enough space between plants. Remove and destroy affected leaves; do not compost.

Slugs and snails — what can you do?

Check new growth in spring. Collect in the evening by torchlight.

Sources (17) Checked 14 October 2026

Similar plants

Have a look at these too.

garden cosmos

Cosmos bipinnatus

11¾ in–3 ft 11¼ in × 1 ft 11⅝ in–2 ft 11⅜ in
Low maintenanceannual
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