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Blue FlagFenwick-Hollowell Wetlands Trail

Blue flag (Iris versicolor)


Blue flag is a herb characterized by its bright purple and yellow flowers and is popular with hummingbirds.
Blue flag

Gardening Tips

Care Known Problems How to Harvest Mature Size Notes/Uses
Prefers wet, acidic soil with around 6 pH; Once planted, the rhizomes will continue to extend and the plant will become more tolerant to pH and humidity; Partial shade is recommended Toxic for humans to ingest, and can even cause skin irritation if touched Is not harvested, Blue flag attracts pollinators that may also pollinate the other plants near it Height: up to 2 feet Attracts pollinators, toxic to humans