Illustration of petunia
petunia
noun
pe·tu·nia
pi-ˈtün-yə 
-ˈtyün-
: any of a genus (Petunia) of tropical South American herbs of the nightshade family that are commonly grown as annuals for their fragrant, colorful, trumpet-shaped flowers
Examples of petunia in a Sentence
Recent Examples on the Web
Deadheading flowers like petunias and roses encourages new blooms and keeps plants healthy.
—
Karen Brewer Grossman,
Southern Living,
30 June 2026
Don’t water your petunias’ leaves.
—
Abby Monteil,
The Spruce,
27 June 2026
Deadheading petunias stimulates fuller, bushier growth and constant blooms, says Funk.
—
Helena Madden,
Martha Stewart,
24 June 2026
See All Example Sentences for petunia
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Karen Brewer Grossman,
Southern Living,
30 June 2026
Don’t water your petunias’ leaves.
—
Abby Monteil,
The Spruce,
27 June 2026
Deadheading petunias stimulates fuller, bushier growth and constant blooms, says Funk.
—
Helena Madden,
Martha Stewart,
24 June 2026
See All Example Sentences for petunia
Cite this Entry
“Petunia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/petunia. Accessed 4 Jul. 2026.
Copy CitationKids Definition
petunia
noun
pe·tu·nia
pi-ˈt(y)ün-yə
: any of a genus of tropical South American herbs of the nightshade family widely grown for their showy funnel-shaped flowers
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