Fraser's marsh St. John's wort (Triadenum fraseri)

Fraser's marsh St. John's wort

Fraser's marsh St. John's wort (Triadenum fraseri) lives in many types of wetlands throughout the United States and southern Canada. The stems grow up to 60 cm high and sprout leaves that appear to have a bluish, purplish, or even pinkish tinge. Though ordinary St. John's wort is sold as an herbal dietary supplement, fraser's marsh St. John's wort is not the same plant and cannot be used the same way.

Scientific classification

Species

Fraser's marsh St. John's wort (Triadenum fraseri)

Genus

Marsh St. John's wort

Family

St. John's wort

Order

Nances, spurges, willows and allies

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Summer

Bloom Time

30 cm to 61 cm

Plant Height

Green, Blue

Leaf Color

Pink, Red, Brown

Flower Color

Deciduous

Leaf type

Images of Fraser's marsh St. John's wort

Distribution of Fraser's marsh St. John's wort

Distribution Map

Fraser's marsh St. John's wort is a plant primarily native to the eastern regions of North America. It has also been introduced to parts of Europe, notably in temperate areas. The species has adapted to a range of climates within these major regions, yet it does not have a notably wide cultivation status globally.

Native

Cultivated

Invasive

Introduced

No species reported

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Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Fraser's marsh St. John's wort

Every week

Water

Full sun

Sunlight

Water: Fraser's marsh St. John's wort thrives in wetland habitats, preferring consistent moisture with weekly watering. It tolerates brief dryness but requires well-drained, damp soil. As an herbaceous perennial, proper irrigation is essential during active growth to support its water-dependent cycles.

Fertilize: For optimal growth, fraser's marsh St. John's wort requires balanced fertilization during spring and summer using a slow-release fertilizer. Over-fertilizing can be detrimental, so adherence to package guidelines is vital. Seasonal adjustments may be necessary, and a soil test can help tailor nutrient needs while protecting nearby ecosystems.

Pruning: The herbaceous perennial fraser's marsh St. John's wort flourishes in wet environments and should be pruned in early to late spring to remove damaged stems. Clean cuts promote bushier growth, enhance air circulation, and decrease disease risk. Use sterilized tools and fertilize post-pruning for optimal recovery.

Propagation: Fraser's marsh St. John's wort propagates best through sowing fresh seeds in a moist, well-draining medium to maintain humidity. Lightly cover the seeds for germination, and replicate native wetland habitats with consistent moisture to ensure successful seedling establishment.

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Learn More About Fraser's marsh St. John's wort

How to Transplant

How to Prune

How to Grow and Care

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