Stream orchid (Epipactis gigantea)

Stream orchid

Also known as: Giant helleborine

Stream orchid (Epipactis gigantea) is one of the most common orchids on North America's Pacific coast and can be found from British Columbia to Mexico. It prefers high altitudes, and is frequently grown as a decorative plant. This species is also known as giant helleborine and chatterbox.

Scientific classification

Species

Stream orchid (Epipactis gigantea)

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Perennial

Lifespan

Herb

Plant Type

Green

Leaf Color

3.5 cm to 6 cm

Flower Size

Yellow, Green, Red, Brown, Pink, Purple

Flower Color

Green, Red, Yellow, Brown, Pink

Stem Color

Deciduous

Leaf type

5 - 32 ℃

Ideal Temperature

Images of Stream orchid

Distribution of Stream orchid

Distribution Map

Stream orchid is native to the temperate regions of the western part of North America. It has been introduced and is cultivated in various regions beyond its original range due to its ornamental appeal. Despite its expansion through cultivation, stream orchid maintains a stable presence in its natural habitat where climatic conditions are suitable.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Ledges, Stream, river banks

Hemisphere Trend Curve

Northern

Sorthern

Culture

Symbolism

Love, Beauty

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Care Guide for Stream orchid

Every week

Water

Partial sun

Sunlight

5 - 32 ℃

Ideal Temperature

Orchid Potting Mix

Soil Type

Water: Stream orchid thrives in moist conditions, requiring consistent moisture typically found near streams. A weekly watering schedule is ideal, with a focus on preventing drying out rather than overwatering. It prefers well-draining soil and is commonly grown outdoors to benefit from natural light and airflow.

Fertilize: Stream orchid thrives with balanced nutrition fertilizers during its active growth in spring and summer, applying diluted solutions monthly. Water before fertilizing, use quarter-strength solutions, and taper off in fall. Gradually introduce fertilizers and monitor response to prevent harm from over-fertilization.

Pruning: Stream orchid, characterized by its tall, reed-like form and vibrant flowers, benefits from annual pruning in early to late spring. Cut back weak stems to promote growth, but avoid heavy pruning. This practice improves air circulation, reduces disease risk, and supports healthy development.

Propagation: Stream orchid thrives in moist environments, propagating effectively through division of its rhizomes. Ensure each division has roots and shoots, and plant in well-draining soil. Maintain consistent moisture without waterlogging to prevent root rot, leading to flourishing growth and beauty in gardens.

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