General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Partial or Dappled Shade
Minimum cold hardiness: Zone 5b -26.1 °C (-15 °F) to -23.3 °C (-10 °F)
Plant Height: up to 7'
Leaves: Good fall color
Unusual foliage color
Other: lance shaped, up to 7" long
Fruit: Edible to birds
Flowers: Showy
Flower Color: White
Flower Time: Summer
Late summer or early fall
Suitable Locations: Xeriscapic
Uses: Erosion control
Will Naturalize
Edible Parts: Fruit
Wildlife Attractant: Bees
Propagation: Seeds: Suitable for wintersowing
Other info: This plant self seeds.
Propagation: Other methods: Cuttings: Tip

Common names
  • Frostweed
  • Iceweed
  • Richweed
  • Tickweed
  • Virginia Crownbeard

  • Posted by jmorth (central Illinois) on Dec 6, 2011 2:34 AM concerning plant:
    An uncommon wildflower in Illinois (near Wabash River in southeast part of state) found in open woods, valleys, and by streamsides.
    Uncommon but certainly worthy of seeking out late in the fall after first hard freeze. After a hard freeze 'frost flowers' are produced. Frost flowers are ribbons of ice oozing out of cracks at the stem's base. What has transpired is pretty unusual... Sap from still living roots freezes as it emerges from dead stem, yet it elongates 'like a ribbon' as more fluid sap is pushed out.
  • Posted by imabirdnut (North Texas - Zone 7b) on Aug 30, 2012 6:52 AM concerning plant:
    Great Fall nectar plant.
    Host plant for
    Bordered Patch (Chlosyne lacinia)
    Silvery Checkerspot (Chlosyne nycteis)
    Summer Azure (Celastrina neglecta)
Plant Events from our members
chelle On May 12, 2015 Seeds germinated
Est. germination date - seedlings observed 2015-05-24.
chelle On January 27, 2015 Seeds sown
W/S - Warm 3 wks, then move outdoors.
variegatagal On March 4, 2021 Transplanted
Transplanted roots to Pond Bed. At the time, showing side shoots.
variegatagal On April 26, 2020 Transplanted
variegatagal On April 7, 2020 Obtained plant
2x Painted Flower Farm
antsinmypants On April 10, 2021 Plant emerged
antsinmypants On January 22, 2021 Seeds sown
WS - Jug 18
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