Summary

Each fall, the beautiful, rich, purple blooms of ironweeds (Vernonia spp.) grace fields and open areas throughout much of the eastern U.S. They are an ecological powerhouse for pollinators and wildlife, including a specialist bee. Ironweeds can make amazing additions to our native plant gardens where they serve as biodiversity magnets. In this episode, we discuss Mt. Cuba Center’s Vernonia Report which includes information about how multiple ironweed species performed in the garden trials, the importance of garden soils and conditions to plant growth and health, how plant health can impact pollinator use, and potential management techniques.

Today’s guest

Sam Hoadley is the Manager of Horticultural Research at Mt. Cuba Center where he evaluates native plant species, old and new cultivars, and hybrids in the Trial Garden.

3 things you’ll learn from this episode:

• Insights into the diversity and ecological value of ironweeds, including their ability to attract a specialist bee and other pollinators.
• The importance of selecting the right ironweed species for specific soil conditions, including some standout performers for average mid-Atlantic garden soils.
• Pros and potential cons of management techniques like the Chelsea Chop to control plant height.

Resources Sam mentioned:

• Vernonia trial report
• Previous trial reports
• Mt. Cuba Center

Other Backyard Ecology resources

• Butterfly Garden Ironweeds – Definitive Guide!
• Backyard Ecology Community
  
  

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