Helianthus annuus 'Earthwalker'
sunflower 'Earthwalker'
A strong, vigorous annual, up to 3m high, with coarse green leaves and abundant, multi-headed flowers, in late summer, with dark brown centres and ray florets which may be rich yellow, terracotta orange, dark red or warm brown
Size
Ultimate height
2.5–4 metresTime to ultimate height
1 yearUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | Green | ||
|---|---|---|---|---|
| Summer | Green | Brown Red Orange | Green | |
| Autumn | Green | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Asteraceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Columnar upright
- Genus
Helianthus can be tall, erect annuals, tuberous or rhizomatous perennials, with coarse simple leaves and large daisy-like flower-heads
- Name status
Accepted
How to grow
Cultivation
Sow in spring and grow in full sun in any fertile, well-drained, neutral, or preferably calcareous, soil. The flowers attract bees and other insects, and the edible seeds provide food for birds, especially finches
Propagation
Propagate by seed or division. Divide established clumps every 2-4 years to both increase plants and retain vigour. See sowing seeds indoors for further advice
Suggested planting locations and garden types
- Cottage and informal garden
- Wildlife gardens
- Flower borders and beds
- Wall side borders
- Cut flowers
Pruning
No pruning required
Pests
Diseases
May be susceptible to powdery mildews and Sclerotinia diseases
Get involved
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