Conoclinium coelestinum

Wild Ageratum

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Item #:
Pot Size: 4"x4"x5.5" pot

Plant Description

Flat-topped clusters of small, soft-blue, fuzzy flowers appear amidst the bright green foliage of this perennial Wild Ageratum. If cut back in half in early summer, these plants will form a lovely clump for the perennial garden. Or, if left unpinched, the result will be an open mound about 2 feet tall in sun (3 feet in shade), with flowers from July through October. This plant prefers sun or partial shade and moisture. Its flowers are excellent cut. It tends to spread, but can be kept in check by growing it in a dry spot, by annually removing spreading shoots with a spade, or by surrounding the plant with a bottomless can, pot, or pail extending from the soil surface down into the soil a foot or so. This confines the roots and creeping underground stems. In a natural setting, Wild Ageratum can become a beautiful low maintenance, medium height ground cover for a moist partly shaded area. It grows beautifully with Great Blue Lobelia, Ironweed, and Seashore Mallow.



Rain Garden

Good Fall Color

Butterfly Plant

Native Plant

Ease of Culture

Easy to grow

Plant Type

Wildflower, Perennial,

Ground cover


Light Exposure

Full sun, Mostly sunny,

Half and half

Soil Condition

Clay, Organic, Average

Moisture Tolerance

Moist, Moderately moist


full quart


24 to 36, 12 to 24

Flower Color

Blue, Purple

Bloom Time

Late summer, Early fall,

Mid fall

Typical Height





5, 6, 7, 8, 9