Annual
Petunia
Petunia hybrida
Proven Winners® varieties
Varieties We Carry
StandardPetunia hybridaPretty Flora RedPetuniaCascade Indian SummerPetunia
Sizes & Pricing
12 inProven WinnersFrom$24.95
1 galProven WinnersFrom$6.95
3 galProven WinnersFrom$16.95
Fresh this week. Last restocked Jun 19.
LightFull Sun
WaterModerate
Mature size8-12 inches × 12-18 inches (varies by type)
About Petunia
Petunia × hybrida is a popular annual flowering plant producing abundant trumpet-shaped blooms in nearly every color, arising from crosses between South American species. A garden staple prized for its long bloom season and versatility in containers, hanging baskets, and beds. Starting at $6.95.
Plant details
- Bloom Season
- Fall, Winter, Spring
- Flower Color
- White, Red, Pink, Purple, Multi
- Growth Rate
- Fast
- Foliage
- Annual
- Soil
- Sandy, Loam, Well-drained
Best planting months
Recommended forZone 9b · St. Augustine, FL
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Seasonal care
Bloom season. Good planting window.
Bloom season.
Bloom season.
Retains foliage through winter.
Care essentials
Light
Plant petunias in full sun (at least 6 hours daily); in NE Florida grow them as a cool-season annual from October through April, when lower sun angles and milder temperatures allow peak performance.
Water
Keep soil consistently moist but not waterlogged; water at the base to keep foliage dry and reduce disease. Container petunias may need daily watering during warm spells; back off during cool, overcast weather.
Soil & Fertilizer
Grow in well-drained sandy or loamy soil amended with compost. Petunias are heavy feeders—apply a balanced water-soluble fertilizer every 2 weeks throughout the bloom season for continuous color.
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Common questions
Is Petunia a good plant for St. Augustine?
Petunia is a annual for Zone 9b coastal Florida gardens, with high salt tolerance, reaching 8-12 inches × 12-18 inches (varies by type).
Care information verified from
Last reviewed February 2026. Our care guidance comes from trusted horticulture sources and decades of helping St. Augustine gardeners. Conditions here can vary dramatically from one area to the next, so come ask us and we'll tailor it to your yard.