Tall saw-wort (Saussurea amara)

Tall saw-wort

Also known as: Alberta saw-wort

Tall saw-wort (Saussurea amara) is a relatively unassuming plant that can be best seen when its purple flower tufts bloom during summer. The plant occupies many habitats, including river shores, steppes, forests, and sand dunes.

Scientific classification

Species

Tall saw-wort (Saussurea amara)

Asters bellflowers fanflowers and allies

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Perennial

Lifespan

Herb

Plant Type

Purple

Flower Color

Evergreen

Leaf type

Images of Tall saw-wort

Distribution of Tall saw-wort

Distribution Map

Tall saw-wort is a plant with a native distribution across temperate regions of Central Asia and Eastern Asia. Its habitat has expanded into parts of Northern Europe, where it has been introduced. The plant's range spans major landmasses from the expansive steppes and highlands of Asia to the forests and meadows of northeastern Europe.

Native

Cultivated

Invasive

Introduced

No species reported

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Care Guide for Tall saw-wort

Every week

Water

Full sun

Sunlight

Water: Tall saw-wort thrives in moderate moisture, mimicking its alpine origins. It prefers consistent watering every week and well-draining soil to avoid root rot. Ideal for temperate gardens, tall saw-wort is resilient in environments with regular rainfall but can tolerate brief dry spells.

Fertilize: For tall saw-wort, use balanced 10-10-10 NPK fertilizers monthly during growth, switching to quarterly in dormancy. Ensure soil pH is neutral to slightly acidic, apply half-strength to avoid root burn, and water soil beforehand. Adjust for light and temperature; fertilize around the base, avoiding leaf contact.

Pruning: Tall saw-wort is a perennial herb featuring purplish flowers and toothed leaves. Prune in early to late spring by removing dead stems and thinning crowded areas to improve airflow. This practice enhances aesthetic appeal and promotes robust flowering and growth throughout the season.

Propagation: Tall saw-wort propagates effectively through cuttings from healthy, non-flowering shoots. Immediate planting in well-draining soil is crucial, along with high humidity and consistent moisture for optimal root development. Careful handling is essential to avoid damaging the delicate shoots and roots.

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Learn More About Tall saw-wort

How to Transplant

How to Prune

How to Grow and Care

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