PlantsAgeratum→Floss Flower (Ageratum houstonianum)

Common names:
Give a thumbs up Floss Flower
Give a thumbs up Bluemink
Give a thumbs up Blueweed
Give a thumbs up Mexican Paintbrush
Give a thumbs up Pussy Foot

Botanical names:
Ageratum houstonianum Accepted
Ageratum mexicanum Synonym

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Dry Mesic
Minimum cold hardiness: Zone 9b -3.9 °C (25 °F) to -1.1 °C (30 °F)
Plant Height: 20 inches (50 cm)
Leaves: Broadleaf
Flowers: Showy
Flower Color: Lavender
Bloom Size: Under 1"
Flower Time: Summer
Uses: Groundcover
Suitable as Annual
Wildlife Attractant: Bees
Pollinators: Moths and Butterflies


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Posted by Catmint20906 (PNW WA half hour south of Olympia - Zone 8a) on Aug 27, 2014 8:46 PM

Floss Flower (Ageratum houstonianum) is an attractive annual with fluffy blue flowers that bloom from late spring to frost. A native to Central America and Mexico, it has become invasive in some areas. Does well in full sun with some afternoon shade in hot summer climates and likes organically rich soil. Deadheading is not necessary.

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Discussion Threads about this plant
Thread Title Last Reply Replies
What is this purple, fuzzy/fluffy looking wildflower I saw last year? by sedumzz Apr 15, 2021 11:55 AM 8
Help ID these plants by ZGadev Apr 8, 2021 5:49 AM 4
Hardy annuals that bloom in spring and summer in Maryland zone 7b by idreos Apr 5, 2021 5:49 PM 10
Flower Id by herrwood Jun 2, 2017 4:20 PM 4
Anyone recognize this one? by plantladylin Feb 10, 2017 1:57 PM 11
Wildflower or Weed? by GardenGoober Sep 28, 2016 2:28 PM 6
Help with plant ID by ScottD Sep 20, 2016 10:30 PM 4
Tiny blue flowers with many spiny petals by Plantiful Sep 30, 2015 3:30 PM 6
Banner for June 5, 2015 by Dinu by Dinu Jun 8, 2015 4:38 AM 8

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