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Definition of floss flower
floss flower
Plural:floss flowers
floss flower Lexical Profile
CEFR
C1
Grade
8
Tier
3
Usage
Rare
• noun
1
A widely cultivated annual ornamental plant (Ageratum houstonianum) in the aster family, native to Central America and Mexico, distinguished by dense clusters of soft, fuzzy, thread-like flowers typically blooming in shades of blue, purple, pink, or white.
Example
"The horticulturist decided to plant a continuous border of vibrant blue floss flowers to edge the formal garden beds."
Synonyms
View all synonyms for floss flower• Nearby Words
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Floss flower. In Wordmom Dictionary. Retrieved Oct 16, 2026, from https://wordmom.com/dictionary/floss flower