Baldwin's ironweed (Vernonia baldwinii)

Baldwin's ironweed

Also known as: Western ironweed

Baldwin's ironweed (Vernonia baldwinii) grows in big colonies, and should be planted where there's a lot of space like a large meadow. The flowers of this plant burst forth in early summer and survive until the first frost.

Scientific classification

Species

Baldwin's ironweed (Vernonia baldwinii)

Asters bellflowers fanflowers and allies

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Weeds

Weed or not

Herb

Plant Type

Summer, Fall

Bloom Time

Fall

Harvest Time

1.2 m

Plant Height

60 cm to 1.2 m

Spread

Green

Leaf Color

2.5 cm

Flower Size

Purple, Pink, Red

Flower Color

Green, Red, Purple

Stem Color

Winter dormancy

Dormancy

Deciduous

Leaf type

Images of Baldwin's ironweed

Distribution of Baldwin's ironweed

Distribution Map

Baldwin's ironweed is a plant primarily found in the central region of North America. While thriving in its native range, it has also made its way to parts of Europe. The growth of baldwin's ironweed is neither widespread across continents nor extensively cultivated.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Disturbed places, grasslands, flood plains, forest margins, prairies

Hemisphere Trend Curve

Northern

Sorthern

Culture

Garden Use

With its fluffy, purple flowers and tall, unruly growth, baldwin's ironweed is best planted in the back position of borders in cottage gardens and wildflower gardens, where its growth won't jeopardize the garden's style. It's also an ideal choice for restored prairies and meadows and is specially value as one of the best late-summer butterfly magnets, making a good addition to wildlife gardens as well.

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Care Guide for Baldwin's ironweed

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Water: Baldwin's ironweed flourishes in well-draining soil with consistent moisture, requiring weekly watering for optimal health. Its robust root system provides moderate drought tolerance once established. Adaptable to various climate zones, baldwin's ironweed can thrive outdoors, maintaining lush foliage despite rainfall variations.

Fertilize: Fertilize baldwin's ironweed with balanced fertilizers to promote growth and flowering. Apply 1/2 strength monthly during the growing season, reducing in winter. Water before fertilizing, and distribute evenly. Monitor for nutrient burn and adjust as necessary, emphasizing spring and summer feeding due to seasonal variations.

Pruning: Baldwin's ironweed thrives with early to late spring pruning, removing dead stems for health and airflow. Cutting back by one-third boosts blooming, while deadheading promotes further growth. Regular maintenance rejuvenates old plants, ensuring baldwin's ironweed stays vibrant and disease-resistant.

Propagation: Baldwin's ironweed propagates best when sown in Spring. It has moderate propagation difficulty, with success signaled by healthy emerging seedlings. Keep soil moist and ensure proper spacing to promote optimal growth.

Repotting: Baldwin's ironweed is a tall perennial requiring repotting every 2-3 years in early spring. Use a container one size larger, place in full sun, and maintain regular watering with well-drained soil for a strong recovery. It thrives with ample space and consistent care.

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