Groundcover
Swamp Twinflower
Dyschoriste humistrata
Varieties We Carry
StandardDyschoriste humistrataLavenderDyschoriste humistrata
Sizes & Pricing
1 galFrom$9.95
Fresh this week. Last restocked Apr 13.
LightPart Sun, Part Shade, Full Shade
WaterModerate
Mature size0.5-1 feet (6-12 in) × 2-4 feet
About Swamp Twinflower
Swamp Twinflower (Dyschoriste humistrata) is a Florida-native perennial groundcover of moist, shaded wetland edges, bearing attractive lavender-purple trumpet-shaped flowers paired in leaf axils. It spreads by decumbent rooting stems to form a low cover and serves as a larval host for the common buckeye butterfly. Starting at $9.95.
Plant details
- Bloom Season
- Spring, Summer, Fall
- Flower Color
- Purple
- Growth Rate
- Moderate
- Foliage
- Semi-evergreen
- Soil
- Sandy, Loam, Moist, Well-drained
Best planting months
Recommended forZone 9b · St. Augustine, FL
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Seasonal care
Bloom season. Good planting window.
Bloom season.
Ideal planting window.
Retains foliage through winter.
Care essentials
Light
Swamp Twinflower grows well in part sun to full shade, making it ideal for NE Florida's shaded moist spots under trees or along shaded wetland edges. It tolerates more sun if soil stays consistently moist.
Water
Prefers average to consistently moist soil; it is native to moist, shaded wetland edges and lakesides. In NE Florida sandy soils, water regularly or site where irrigation keeps soil moist. Established plants in shaded, moist areas need less supplemental water.
Soil & Fertilizer
Plant in moist sandy or loamy soil with good organic content. Amend sandy soils with compost to improve moisture retention. Fertilize lightly in spring with a balanced slow-release formula; plants in humus-rich shaded sites may need no supplemental fertilizer.
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Common questions
Is Swamp Twinflower a good plant for St. Augustine?
Swamp Twinflower is a groundcover for Zone 9b coastal Florida gardens, reaching 0.5-1 feet (6-12 in) × 2-4 feet.
Care information verified from
Last reviewed March 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.