The Story
Plant Bio
Helianthus salicifolius, commonly known as Willow-leaved Sunflower, is a tall perennial with narrow, willow-like foliage and cheerful yellow daisy-like flowers that bloom in late summer.
This species is notable for its graceful, arching stems and its ability to attract pollinators, making it a popular choice for ornamental gardens and wildlife habitats.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
72 inches
Width
36 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
North America
Toxicity
Non-toxic
Bloom period
Mid-summer – Late summer
In flower about 2 months of the year
Planting
How to Grow
- Choose a sunny spot with well-drained soil.
- Tuck seeds 1/2 inch deep and space 18 inches apart.
- Mist cuttings or water newly planted seedlings daily for 2 weeks.
- Fertilize with a balanced fertilizer in early spring.
- Mulch around the base to retain moisture and suppress weeds.
- Transplant young plants after last frost for best results.
Pro Tip
Plant in full sun with well-drained soil for vibrant blooms.
Keep It Thriving
Care Guide
Do
- Water regularly during dry spells 🌱
- Prune dead or damaged stems after flowering
- Fertilize with compost annually
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t disturb roots during peak flowering
- Do not use chemical pesticides on beneficial insects
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prune | ||||||||||||
| Spring Cleanup | ||||||||||||
| 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
Salicifolius Sunflower Willowleaf Sunflower questions
What zones can Salicifolius Sunflower Willowleaf Sunflower grow in?
Salicifolius Sunflower Willowleaf Sunflower is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Salicifolius Sunflower Willowleaf Sunflower deer resistant?
Not reliably. Deer may browse Salicifolius Sunflower Willowleaf Sunflower, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Salicifolius Sunflower Willowleaf Sunflower bloom?
Salicifolius Sunflower Willowleaf Sunflower typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Salicifolius Sunflower Willowleaf Sunflower need full sun?
Salicifolius Sunflower Willowleaf Sunflower does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Salicifolius Sunflower Willowleaf Sunflower drought tolerant?
Yes — once established (usually after the first full season), Salicifolius Sunflower Willowleaf Sunflower 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
Table Mountain Sunflower
Helianthus annuus 'Table Mountain'
Common Sunflower
Helianthus annuus
Keep exploring
Explore the genus
Hardy in your zone?
Grow Salicifolius Sunflower Willowleaf Sunflower 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.