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Ageratum houstonianum

Family: asteraceae

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• GRIN. Taxonomical details, with common names, distribution, and synonyms.

Links for Ageratum houstonianum

• Annie's Annuals: Ageratum houstonianum 'Blue Horizon' - Catalog page with photo, basic horticultural information, and noteworthy features. (2 photos)
• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (17 photos)
• Floridata - Illustrated informative profile page with notes on culture, usage, and noteworthy features. (zone 5-10) (4 photos)
• Kemper Center - Plantfinder page for one of the plants growing at the Missouri Botanical Garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (4 photos). Also a page for Blue Horizon.
• North Carolina State University factsheet - Plant profile with horticultural details and comments (1 photo)