Fireweed (Chamaenerion angustifolium, formerly Epilobium angustifolium) is a striking native perennial known for its tall spires of vivid magenta-pink flowers that bloom from mid-summer into early fall. Its lance-shaped leaves and upright habit create a bold vertical accent, while its ability to quickly establish from root systems makes it especially useful in revegetation efforts after fire or soil disruption. In fall, its foliage often takes on brilliant reddish tones, adding another layer of striking seasonal interest. A beacon for pollinators and a symbol of natural regeneration, this wildflower thrives in open, disturbed areas—making it a great choice for restorative plantings, meadows, and naturalized plantings. Due to its natural habit of spreading to form colonies, we recommend planting in larger areas where this is a desirable attribute for weed control, or planting in areas that will receive more regular maintenance so shoots can be removed if it starts to spread beyond the desired planting area and flowers can be deadheaded after blooming to control seeding.
Photo Credit: Matt Lavin and Kallerna
Fireweed
Irrigation Requirement: Very Low (Water to Establish), Low (1/2" every 10-14 days), or Moderate (1/2" every 7-10 days)
Mature Size: 2 - 5' tall and 1 - 3' wide
Spacing: 2 - 3' apart
Bloom Colors: Pink
Bloom Season: June - September
Hardiness Zone: 2 - 7
Light Requirement: Full Sun, Partial Shade
Deer Resistant: Somewhat (deer may browse, but it will generally will not hurt the plant)
Salt Tolerant: No
Soils: Prefers well-draining sandy or loam soils. It generally does not do well in clay.
Plants in the genus Chamaenerion are host species for 3 known native pollinators. They are also provide nectar and pollen for pollinators and seeds for birds.