The Story
Plant Bio
Echinacea, or coneflowers, are upright, clump-forming perennials native to North American prairies, known for their daisy-like flowers with prominent central cones. They are valued for their long bloom season and pollinator-attracting qualities.
'Sombrero Tres Amigos' is unique for its color-changing flowers, which open peachy-coral, mature to a rosy-pink, and finish a deep burgundy, creating a multi-toned effect on a single plant.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
20 inches
Width
22 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Low to Moderate
Humidity
Average
Lifespan
Short-lived perennial
Native To
North America (parentage)
Toxicity
Non-toxic
Bloom period
Mid-summer – Early fall
In flower about 3 months of the year
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Select a location with at least six hours of direct sun daily.
- Amend soil with compost to ensure excellent drainage.
- Dig a hole as deep and twice as wide as the root ball.
- Place the plant so the crown is level with the soil surface.
- Water thoroughly after planting to settle the soil.
- Mulch lightly, keeping it away from the plant's crown.
Pro Tip
Deadhead spent blooms to encourage reblooming, but leave late-season seed heads for winter interest and to feed goldfinches.
Keep It Thriving
Care Guide
Do
- Provide full sun for the strongest stems and most flowers.
- Allow soil to dry out between waterings once established.
- Deadhead regularly to promote a longer bloom season.
- Leave late-season seed heads for winter bird feeding.
Don't
- Do not overwater or plant in soggy, poorly drained soil.
- Avoid heavy shade, which causes weak, floppy growth.
- Do not over-fertilize, as this can lead to excessive foliage and fewer flowers.
- Avoid piling mulch against the plant's crown to prevent rot.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Pest Check | ||||||||||||
| Plant |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
Sombrero Tres Amigos Coneflower questions
What zones can Sombrero Tres Amigos Coneflower grow in?
Sombrero Tres Amigos Coneflower 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 Sombrero Tres Amigos Coneflower deer resistant?
Yes — Sombrero Tres Amigos Coneflower is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Sombrero Tres Amigos Coneflower bloom?
Sombrero Tres Amigos Coneflower typically blooms in mid-summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Sombrero Tres Amigos Coneflower need full sun?
Sombrero Tres Amigos Coneflower does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Sombrero Tres Amigos Coneflower drought tolerant?
Yes — once established (usually after the first full season), Sombrero Tres Amigos Coneflower handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Echinacea to compare
Cheyenne Spirit Coneflower
Echinacea purpurea 'Cheyenne Spirit'
Purple Coneflower Rainbow
Echinacea purpurea 'Rainbow'
Butterfly Kisses Coneflower
Echinacea purpurea 'Butterfly Kisses'
Purple Coneflower
Echinacea purpurea
Primadonna Deep Rose Coneflower
Echinacea purpurea 'Primadonna Deep Rose'
Double Delight Coneflower
Echinacea purpurea 'Double Delight'
Keep exploring
Explore the genus
Grow Sombrero Tres Amigos Coneflower 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.