
Asahi false sunflower
Heliopsis helianthoides 'Asahi'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
30 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate once established
Humidity
Prefers moderate humidity
Lifespan
Perennial
Native To
North America
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
A perennial with bright yellow daisy-like flowers that attract pollinators. This cultivar is distinguished by its unique, fully double, pom-pom-like, golden-yellow flowers and a sturdy, upright habit.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds into well-draining soil in early spring for best germination.
- Water regularly to keep soil moist but not waterlogged during early growth.
- Thin seedlings to prevent overcrowding, ensuring good air circulation.
- Stake taller varieties if needed to support their growth.
- Fertilize monthly with a balanced fertilizer during the growing season.
- Deadhead spent flowers to encourage more blooms and maintain plant health.
Pro Tip
Use organic compost to enrich soil and promote vigorous flowering.
Keep It Thriving
Care Guide
Do
- Water deeply once a week during dry spells 🌱
- Deadhead regularly to prolong blooming
- Provide full sun for optimal growth
- Apply a layer of mulch to retain soil moisture
Don't
- Avoid overwatering to prevent root rot ❌
- Don't overcrowd plants to ensure good airflow
- Refrain from pruning during late fall
- Avoid using harsh chemical fertilizers excessively
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Spring Cleanup | ||||||||||||
| Stake |
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
Asahi false sunflower questions
What zones can Asahi false sunflower grow in?
Asahi false sunflower 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 Asahi false sunflower deer resistant?
Yes — Asahi false sunflower is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Asahi false sunflower bloom?
Asahi false 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 Asahi false sunflower need full sun?
Asahi false sunflower does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Asahi false sunflower drought tolerant?
Yes — once established (usually after the first full season), Asahi false sunflower handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
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