species
Helenium autumnale
Sneezeweed
Scale drawing from this record, beside a 1.7 m figure.
Helenium autumnale belongs to the family Asteraceae, also known as Sneezeweed, introduced to the UK. It reaches 1.2 m tall and 60 cm across in about 10 years. It grows in full sun, on loam or clay soil, where the ground is acid, neutral or alkaline and in moist conditions, and suits average positions. It flowers from August to September. Its RHS hardiness rating is H7 (very hardy): Below −20°C.
Assembled from the attributes recorded below.
What this plant needs
- Size at maturity
- 1.2 m tall × 60 cm across, after about 10 years
- Hardiness
- H7 (RHS)
- Aspect
- Full sun
- Soil
- Loam, Clay
- Acidity
- Acid, Neutral, Alkaline
- Moisture
- Moist
- Exposure
- Average
- In the UK
- Introduced
When it flowers
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
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