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
Both petunias and marigold, planted now, will continue to bloom until December.
—
Joshua Siskin, Oc Register, 11 Sep. 2025
If your petunias and coleus look spindly and leggy, use pruning shears to cut them back by about one-half.
—Mary Marlowe Leverette, Southern Living, 5 Sep. 2025
However, the petunia’s glow is often more muted and is only available in one color—green.
—Laura Baisas, Popular Science, 27 Aug. 2025
Keep petunias deadheaded for more blooms and a neater appearance.
—Andy Wilcox, Better Homes & Gardens, 16 Aug. 2025
See All Example Sentences for petunia
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Joshua Siskin, Oc Register, 11 Sep. 2025
If your petunias and coleus look spindly and leggy, use pruning shears to cut them back by about one-half.
—Mary Marlowe Leverette, Southern Living, 5 Sep. 2025
However, the petunia’s glow is often more muted and is only available in one color—green.
—Laura Baisas, Popular Science, 27 Aug. 2025
Keep petunias deadheaded for more blooms and a neater appearance.
—Andy Wilcox, Better Homes & Gardens, 16 Aug. 2025
See All Example Sentences for petunia
Cite this Entry
“Petunia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/petunia. Accessed 18 Sep. 2025.
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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