Conoclinium [Eupatorium] coelestinum (Hardy Ageratum, Mist flower) - 2 gal

Name: Conoclinium [Eupatorium] coelestinum (Hardy Ageratum, Mist flower) - 2 gal
Brand: Scioto Gardens Native Plant Nursery
SKU: ConCoel2
Price: 19.99 USD
Availability: InStock

Hardy Ageratum, Mist flower

Blue Mistflower, also known as Hardy Ageratum, is a lovely late-blooming native wildflower. When it bursts into bloom in September, it is covered in flat-topped clusters of fuzzy, blue-violet to lavender colored flowers that provide an excellent source of nectar for numerous pollinators. It is a total butterfly magnet! It is also a host to the furry little Ruby Tiger Moth and the ever-so-chic Clymene Moth.This plant can be somewhat aggressive as it spreads readily by seed and through vigorous rhizomatous growth, making it a good choice for meadows and large naturalized areas. Rabbits and deer tend to avoid the bitter foliage, allowing for easy establishment of a thick groundcover in areas where it can roam freely. If a shorter or more controlled specimen is desired, plants can be cut back by half in early summer. Blue Mistflower resents drying out and grows best in consistently moist soils.Sources:
Growing and Propagating Wildflowers by William Cullina
Missouri Botanical Garden
Lady Bird Johnson Wildflower Center
Illinois Wildflowers
NC State Extension

Plant Care & Installation Quick-Guide

Proper acclimation and installation are key to your plant's success. Please cross-reference these tips with your plant's specific ID tags:

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Pre-Planting: Store plants in a light-appropriate area on soil or grass (avoid hot concrete or asphalt) and water daily until the soil is saturated and the pot feels heavy. If temperatures drop below 30°F, move pots to a garage or cover them to prevent root freeze.

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Installation: Dig a hole matching the depth of the pot, remove the fabric container, and ensure the plant’s crown or root flare is level with the ground. Fill gaps with soil, water heavily, and apply 2 inches of mulch—keeping it clear of the stem.

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Ongoing Care: Check moisture daily by feeling 1–2 inches into the soil; water deeply at the base if the soil feels dry or warm. Newly installed plants require frequent watering (up to 3–4 times weekly in heat) until fully established, which can take a few months for perennials and up to two years for trees.