The Story
Plant Bio
Helianthus x multiflorus 'Capenoch Star' is a vigorous perennial with broad, toothed leaves and bright yellow, daisy-like flowers that typically bloom in late summer to autumn, creating a cheerful display.
This cultivar is celebrated for its large, densely petaled flowers that resemble a starburst, along with its excellent tolerance to wind and drought conditions.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
48 inches
Width
24 inches
Light
Full Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
North America
Toxicity
Non-toxic
Planting
How to Grow
- Tuck seeds into well-drained soil in early spring.
- Water regularly until established, about 6 weeks.
- Place in full sun for best blooming performance.
- Fertilize monthly during active growth season.
- Stake tall varieties if needed to prevent flopping.
- Divide clumps every 3–4 years in early spring.
Pro Tip
Use well-drained soil and full sun for vibrant blooms.
Keep It Thriving
Care Guide
Do
- Water deeply during dry spells 🌱
- Prune dead or damaged stems in late fall
- Fertilize with a balanced fertilizer in spring
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t cut back in late fall; wait until early spring
- Refrain from fertilizing in late summer
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Pinch | ||||||||||||
| Stake | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Helianthus x multiflorus Capenoch Star questions
What zones can Helianthus x multiflorus Capenoch Star grow in?
Helianthus x multiflorus Capenoch Star is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Helianthus x multiflorus Capenoch Star deer resistant?
Yes — Helianthus x multiflorus Capenoch Star is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Helianthus x multiflorus Capenoch Star bloom?
Helianthus x multiflorus Capenoch Star typically blooms in late summer to fall through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Helianthus x multiflorus Capenoch Star need full sun?
Helianthus x multiflorus Capenoch Star does best in full sun (6+ hours).
Is Helianthus x multiflorus Capenoch Star drought tolerant?
Yes — once established (usually after the first full season), Helianthus x multiflorus Capenoch Star handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Helianthus to compare
Swamp Sunflower
Helianthus angustifolius 'First Light'
Maximilian sunflower
Helianthus maximiliani
Narrow-Leaf Sunflower Low Down
Helianthus angustifolius 'Low Down'
Bolander's Sunflower
Helianthus bolanderi
Salicifolius Sunflower Willowleaf Sunflower
Helianthus salicifolius
Table Mountain Sunflower
Helianthus annuus 'Table Mountain'
Keep exploring
Explore the genus
Grow Helianthus x multiflorus Capenoch Star with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.