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Virginia marsh St. John's-wort
Triadenum virginicum
Hypericaceae
 

Copyright by: Shirley Denton

General Landscape Uses: Primarily recommended for natural landscapes and habitat restorations.

Availability: Grown by enthusiasts and occasionally by native plant nurseries.

Description: Medium herbaceous wildlfower.

Dimensions: About 1-2 feet in height. Taller than broad.

Growth Rate: Moderate.

Range: Eastern and central North America west to Texas and Oklahoma and south to Palm Beach, Highlands and Manatee counties.

Plant Map Map of select IRC data from peninsular Florida.

 Map of ZIP codes with habitat recommendations north to Martin and Charlotte counties.

Habitats: Swamps.

Soils: Wet to moist, moderately well-drained to poorly-drained organic soils.

Nutritional Requirements: Moderate; can grow in nutrient poor soils, but needs some organic content to thrive.

Salt Water Tolerance: Low; does not tolerate flooding by salt or brackish water.

Salt Wind Tolerance: Low; salt wind may burn the leaves.

Drought Tolerance: Low; requires moist to wet soils and is intolerant of long periods of drought.

Light Requirements: Light shade.

Flower Color: Purplish

Flower Characteristics: Inconspicuous.

Flowering Season: Summer.

Fruit: Inconspicuous capsule.


Copyright by: Shirley Denton


Other data on Triadenum virginicum available from:



 
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