Woolly bluestar (Amsonia tomentosa)

Woolly bluestar

Woolly bluestar (Amsonia tomentosa) has an appropriate common name, since its pale blue flowers are star shaped, and its leaves are covered in fine, woolly hairs. The Latin name reflects this too since tomentosa means hairy. Woolly bluestar can appear in two forms: green and smooth, or gray and woolly.

Scientific classification

Species

Woolly bluestar (Amsonia tomentosa)

Gentians, dogbanes, madders, and allies

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Spring, Winter

Bloom Time

20 cm to 60 cm

Plant Height

White, Purple

Flower Color

Deciduous

Leaf type

0 - 38 ℃

Ideal Temperature

Images of Woolly bluestar

Distribution of Woolly bluestar

Distribution Map

Woolly bluestar is a plant primarily native to major regions within the North American continent. Its presence is established in environments characteristic of the region's flora but has not been widely introduced or naturalized in areas outside its indigenous range.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Sandy deserts and washes

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Woolly bluestar

Every week

Water

Full sun

Sunlight

0 - 38 ℃

Ideal Temperature

Water: Woolly bluestar thrives in moderate moisture and requires consistent weekly watering. It prefers well-draining soil to prevent overwatering, essential for healthy roots. Typically grown outdoors, this hardy species has adapted to its native environment, balancing hydration without excessive dryness or moisture.

Fertilize: For optimal growth of woolly bluestar, fertilize biannually in spring and fall using balanced fertilizers. High phosphorus options may enhance flowering. Follow manufacturer guidelines to avoid over-fertilization. Water woolly bluestar after fertilization to assist nutrient uptake and prevent root burn, adjusting for seasonal needs.

Pruning: Woolly bluestar features dense, woolly foliage and blue star-shaped flowers, thriving with early to late spring pruning. Trim old stems and dead growth for healthier blooms, maintain compact shape, and improve airflow to reduce diseases. Spring pruning rejuvenates after dormancy, ensuring robust growth and abundant flowering.

Propagation: Woolly bluestar thrives in dry to average, well-drained soil. Propagate by sowing mature seeds directly into prepared beds or pots with seed-starting mix, ensuring sufficient light and moisture. After seedlings grow true leaves, transplant them, allowing for adequate spacing for growth. Early care is vital for root establishment.

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