
Orange Hawkweed
Hieracium aurantiacum
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
12 inches
Width
12 inches
Light
Full Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
Europe
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Hieracium aurantiacum, or orange hawkweed, is a perennial herb with hairy leaves in a basal rosette. It spreads via stolons and rhizomes to form dense mats. Stems bear clusters of bright orange, dandelion-like flower heads. This species is considered a noxious, invasive weed in many regions. Its vibrant flowers are attractive, but it spreads aggressively, outcompeting native plants. Planting is strongly discouraged.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into well-draining soil in early spring
- Keep soil moist until germination, around 2 weeks
- Thin seedlings to 8 inches apart for healthy growth
- Water regularly during dry periods, especially first year
- Mulch to retain moisture and suppress weeds
- Divide clumps every 3 years in early spring
Pro Tip
Ensure excellent drainage to prevent root rot and promote healthy growth.
Keep It Thriving
Care Guide
Do
- Water during prolonged dry spells π±
- Deadhead spent flowers to encourage more blooms
- Divide every 3 years for vigorous growth
- Apply a balanced fertilizer in spring
Don't
- Avoid overwatering, which can cause root rot β
- Donβt disturb roots during flowering
- Refrain from fertilizing late in the season
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Spring Cleanup |
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
Orange Hawkweed questions
What zones can Orange Hawkweed grow in?
Orange Hawkweed is hardy in USDA Zones 4β9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Orange Hawkweed deer resistant?
Not reliably. Deer may browse Orange Hawkweed, especially tender spring growth β plan on repellents or fencing where pressure is high.
When does Orange Hawkweed bloom?
Orange Hawkweed typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone β Sow's bloom calendar maps it to your garden.
Does Orange Hawkweed need full sun?
Orange Hawkweed does best in full sun (6+ hours).
Is Orange Hawkweed drought tolerant?
Yes β once established (usually after the first full season), Orange Hawkweed handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.

