| Virginia marsh St. John’s-wort
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| Triadenum virginicum
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| Hypericaceae
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Landscape Uses:
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Primarily recommended for natural landscapes and habitat restorations. |
Ecological Restoration Notes: |
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| Availability: |
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Grown by enthusiasts and occasionally by native plant nurseries. |
| Description: |
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Medium herbaceous wildlfower. |
| Height: |
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About 1-2 feet in height. Taller than broad. |
| Growth Rate: |
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Moderate. |
| Range: |
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Eastern and central North America west to Texas and Oklahoma and south to Palm Beach, Highlands and Manatee counties. |
| Habitats: |
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Swamps. |
| Soils: |
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Wet to moist, moderately well-drained to poorly-drained organic soils. |
| Nutritional Requirements: |
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Moderate; can grow in nutrient poor soils, but needs some organic content to thrive. |
| Salt Water Tolerance: |
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Low; does not tolerate flooding by salt or brackish water. |
| Salt Wind Tolerance: |
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Low; salt wind may burn the leaves. |
| Drought Tolerance: |
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Low; requires moist to wet soils and is intolerant of long periods of drought. |
| Light Requirements: |
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Light shade. |
| Flower Color: |
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Purplish |
| Flower Characteristics: |
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Inconspicuous. |
| Flowering Season: |
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Summer. |
| Fruit: |
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Inconspicuous capsule. |
| Wildlife and Ecology: |
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| Horticultural Notes: |
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| Comments: |
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