What you will see
Brown spots on leaves.
How to protect
- Prevention
- Airy planting.
- By hand once noticedRemove affected leaves.
AI gardenerAdvises from our plant pages
You are asking about: Common sneezeweed
Hello! I can help with where to plant it, when to prune it and what to pair it with. I advise from our plant pages.
Checking whether the gardener is switched on…Credit prices
Perennial · Asteraceae family
Common sneezeweed
Helenium autumnale
Full sun to part shade 2 ft 11⅜ in–4 ft 11 in × 1 ft 11⅝ in–2 ft 11⅜ in Flowers August–October to −99 °F
Flower colors Click a color
In short a 10-second read
SunFull sun to part shade
Size2 ft 11⅜ in–4 ft 11 in
spacing 23½ in
spacing 23½ 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
Watering
Frost
−99 °F
How much space it takes
Mature size.
The mature plant next to a person (69 in).
2 ft 11⅜ in–4 ft 11 in× spread 1 ft 11⅝ in–2 ft 11⅜ in
Plant 23½ 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
FlowersPlantingFeeding
Now, in October: a good time for planting (container plant).
JanFebMarAprMayJunJulAugSepOctNovDec
Flowers
JanFebMarAprMayJunJulAugSepOctNovDec
August–October · yellow, orange, brown or red
Planting
JanFebMarAprMayJunJulAugSepOctNovDec
container plant: March–May, September–November
Feeding
JanFebMarAprMayJunJulAugSepOctNovDec
March–May
Feeding
Nutrition.
Light
JanFebMarAprMayJunJulAugSepOctNovDec
Pests and diseases
Common problems and what to do.
The most common problems in Central Europe. Protection is listed from the gentlest option.
What you will see
Brown spots on leaves.
How to protect
- Prevention
- Airy planting.
- By hand once noticedRemove affected leaves.
Sources (1)
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.
Frequently asked
Quick answers.
When does common sneezeweed flower?
In August–October; the flowers are yellow, orange, brown or red.
Does common sneezeweed tolerate shade?
It tolerates part shade (3–6 hours of sun), but not full shade.
How much space does common sneezeweed need?
At maturity 1 ft 11⅝ in–2 ft 11⅜ in wide and 2 ft 11⅜ in–4 ft 11 in tall; recommended spacing 23½ in.
Leaf spots — what can you do?
Airy planting. Remove affected leaves.
Sources (15) Checked 14 October 2026
- plants.ces.ncsu.edu
- missouribotanicalgarden.org
- api.gbif.org 2
- rhs.org.uk 2
- yardandgarden.extension.iastate.edu
- bethchatto.co.uk
- perennials.com
- Invasive plant lists — this species is not on them: EU, Slovakia, Czechia, Germany, Poland, Denmark
Similar plants
Have a look at these too.
New England aster
Symphyotrichum novae-angliae
2 ft 11⅜ in–5 ft 10⅞ in × 11¾ in–2 ft 11⅜ in
Moderate careperennial
purple coneflower
Echinacea purpurea
2 ft 11⅜ in–3 ft 11¼ in × 1 ft 3¾ in–1 ft 11⅝ in
Low maintenanceperennial
Southern Globe Thistle
Echinops ritro
2 ft 11⅜ in–3 ft 11¼ in × 1 ft 11⅝ in–2 ft 5⅞ in
Low maintenanceperennial
Uses
In the garden and at home.
Pollinators
many