- Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
- Mature Height 2 - 3 Feet
- Mature Spread 2 - 3 Feet
- Growing Zones 4 - 8
Hardy Ageratum (Eupatorium coelestinum) also known as Blue Mistflower or Blue Boneset, is an upright, branched wildflower that is part of the Aster family. Their soft, eye-catching bluish-purple, fuzzy flowers appear from mid-summer through fall. Ageratums attract bees, butterflies, and a variety of important pollinators. This perennial grows in hardiness zones 4-8. Hardy Ageratum reaches 2-3 ft in height and width when mature. Its native habitats are along stream banks, sunlit wetlands, and meadows. As a bonus, this plant is deer resistant.
The attractive red stems of Blue Mistflower support fuzzy, lilac-blue flowers with bright-green leaves; the flowers provide profuse, long-lasting color from late summer through fall. Easy to grow, Hardy Ageratum can be used in a variety of garden types such as rain, cottage, and pollinator gardens, and is also excellent for areas that need erosion control.
Blue Mistflower Care
Blue Mistflower is an adaptable wildflower that can grow in a variety of locations in partial to full sun. The sunnier the location, the more moisture the soil should have. This wildflower prefers moist, well-draining soil. Blue Mistflower is an important nectar source for butterflies, skippers, and native bees.
Hardy Ageratum is an adaptable perennial wildflower that is naturally found at the edges of woods and woodland clearings, on banks of lakes, creeks, rivers, and wet prairies, and often found in open sunny meadows.
Blue Mistflower Spacing
Used as a border perennial, space plants 20” apart or slightly closer together when used as a colonizing groundcover. These plants spread quickly and are excellent for naturalizing an open area. When Blue Mistflower is planted en masse, the eye-catching, misty-blue drifts of color make a big impact.
Blue Mistflower Information
USDA Hardiness Zones: 4 - 8 |
Plant Type: Perennial |
Light Exposure: Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight) |
Mature Height: 2 - 3 Feet |
Mature Spread: 2 - 3 Feet |
Spacing: 2 - 3 Feet |
Habit: Upright |
Flower Color(s): Blue |
Flower Description: |
Bloom Period: Mid-Summer Into Autumn |
Foliage Type: N/A |
Foliage Color(s): Green |
Foliage Description: |
Seasonal Interest: N/A |
Watering: Average |
Resists: Disease, Pests & Insects |
Tolerates: N/A |
Attracts: Butterflies |
Container Role: |
Uses: Borders, Edging |
Features: Attracts Pollinators, Cut Flowers |
Brand: American Beauties Native Plants |
Common Name: Blue Mistflower |
Other Name(s): |
Scientific Name: Eupatorium coelestinum |
- SKU:
- 1231003660-pc
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on; type of plant, time of year, last pruning & many other factors.
For more detailed information, please click here.
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Plant Addicts Warranty - 1 Year (Extra Purchase Required)

Guide: How to Care for Your New Plant(s)

Planter Shipping
Standard Colors: 2-3 business days
Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice
Please Note: On special orders there can not be any cancellations
Plant Shipping
Time of Order:
Summer Shipping
- If there is extreme heat we’ll delay shipping.
- We’ll have to review what areas the plants are traveling through along with your location
Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.
It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.