Perennial
Frostweed
Verbesina virginica
Varieties We Carry
PinkVerbesina virginicaStandardVerbesina virginica
Sizes & Pricing
1 galFrom$6.95
Fresh this week. Last restocked Mar 11.
LightFull Sun, Part Sun
WaterModerate
Mature size4-6 feet × 2-3 feet
About Frostweed
Frostweed (Verbesina virginica) is a tall North American native perennial of the daisy family, bearing clusters of small white flowers from late summer through fall that are a critical late-season nectar source for migrating monarch butterflies and other pollinators. In winter, the stems split to produce ribbons of ice crystals around the base — the feature that gives the plant its common name. Native to open woodlands, roadsides, and disturbed areas across the southeastern United States. Starting at $6.95.
Plant details
- Bloom Season
- Late summer, Fall
- Flower Color
- White
- Growth Rate
- Fast
- Foliage
- Deciduous
- Soil
- Sandy, Loam, Well-drained, Moist
Best planting months
Recommended forZone 9b · St. Augustine, FL
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This monthGood windowOther months
Seasonal care
New foliage emerges. Good planting window.
Active growing season.
Bloom season. Foliage may begin to change or drop. Ideal planting window.
Dormant — drops foliage.
Care essentials
Light
Thrives in full sun to partial shade; afternoon shade in NE Florida helps prevent scorching and keeps plants more compact. More sun encourages more blooms and sturdier stems.
Water
Prefers consistently moist, organically rich soil but tolerates short dry periods once established. Water regularly during establishment; reduce in winter dormancy. Stake or cage tall stems to prevent flopping.
Soil & Fertilizer
Plant in moist, well-drained, organically amended soil. Established plants need no fertilizer; if desired, apply a balanced 10-10-10 fertilizer in April and July to encourage bloom. Mulch heavily to retain moisture.
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Common questions
Is Frostweed a good plant for St. Augustine?
Frostweed is a perennial for Zone 9b coastal Florida gardens, reaching 4-6 feet × 2-3 feet.
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.