Overview
Helianthus annuus Autumn Beauty (mixed) is a bushy, clump forming annual biennial in the genus Helianthus, part of the Asteraceae family, with deciduous foliage. It typically grows around 1.5-2.5 metres tall and 0.1-0.5 metres wide, reaching full size in around 1 year. Helianthus annuus Autumn Beauty (mixed) grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H4. Suggested uses include city and courtyard gardens, cottage and informal garden, wildlife gardens and flower borders and beds.
About
The common sunflower is a large annual forb in the daisy family Asteraceae. The domesticated form of common sunflower is harvested for its edible seeds, which come in two types: oil and confectionary seeds.
Wikipedia contributors, CC BY-SA 4.0 — Common sunflower
About the genus
Helianthus is a genus comprising around 50 species of annual and perennial flowering plants in the daisy family Asteraceae commonly known as sunflowers. The species of Helianthus are native to North America. The best-known species is the common sunflower.
Wikipedia contributors, "Helianthus", CC BY-SA 4.0 — Helianthus
Growing conditions
Best soil and position for Helianthus
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
Helianthus annuus Autumn Beauty (mixed) size, habit and characteristics
- Plant type
- Annual Biennial
- Habit
- Bushy, Clump forming
- Foliage
- Deciduous
- Height
- 1.5-2.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1 year
- Suggested uses
- City and courtyard gardens, Cottage and informal garden, Wildlife gardens, Flower borders and beds
Care notes
Pruning and caring for Helianthus annuus Autumn Beauty (mixed)
- Propagation
- Seed, Division
- Pest resistance
- Slugs, Snails
- Disease resistance
- Powdery mildews, Sclerotinia diseases
Frequently asked questions
Where is the best place to plant Helianthus annuus Autumn Beauty (mixed)?
Helianthus annuus Autumn Beauty (mixed) prefers full sun. It suits sheltered positions.
What soil does Helianthus annuus Autumn Beauty (mixed) need?
Helianthus annuus Autumn Beauty (mixed) is adaptable and grows happily in most soil types, including chalk, clay and loam. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
How big does Helianthus annuus Autumn Beauty (mixed) grow?
Helianthus annuus Autumn Beauty (mixed) reaches a height of 1.5-2.5 metres and a spread of 0.1-0.5 metres. It takes around 1 year to reach full size.
Is Helianthus annuus Autumn Beauty (mixed) hardy in the UK?
Helianthus annuus Autumn Beauty (mixed) has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.
How do I propagate Helianthus annuus Autumn Beauty (mixed)?
Seed, Division.
More in the Helianthus genus
- Helianthus 'Carine'Sunflower
- Helianthus annuus Solano Orange Nr. 14 (Solano Series)Common Sunflower
- Helianthus orygalis
- Helianthus scaberrimusSunflower