General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Dry Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone: Zone 9b
Plant Height: 30 inches to 36 inches
Plant Spread: 12 to 16 inches
Leaves: Unusual foliage color
Other: Lance-shaped, up to 6" long, blunt teeth along the margins; soft, downy hairs underneath
Flowers: Showy
Flower Color: Blue
Other: hooded upper lip is blue, lower lip has 3 lobes w/ a white center
Bloom Size: 1"-2"
Flower Time: Summer
Uses: Will Naturalize
Wildlife Attractant: Bees
Resistances: Deer Resistant
Rabbit Resistant
Drought tolerant
Propagation: Other methods: Division
Pollinators: Moths and Butterflies
Miscellaneous: Tolerates poor soil

Common names
  • Skullcap
  • Hoary Skullcap
  • Downy Skullcap

  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Jul 13, 2018 1:44 PM concerning plant:
    This nice easy perennial is native from southern New York into Georgia to Louisiana to southeast Kansas to Illinois & Indiana & Ohio. Its two-lipped, round-top, purplish-blue flowers that look sort of like skulls or helmets are covered by fine plant hair. The square stems, members of the Mint Family have square stems) are hairy. I have not seen this species sold by conventional garden centers, but it is sold by some specialty nurseries and by some native plant nurseries as: North Creek Nursery in southeast PA, New Moon Nursery in southern New Jersey, and Prairie Moon Nursery in southern Minnesota.
  • Posted by jmorth (central Illinois) on Aug 23, 2012 9:12 PM concerning plant:
    A wildflower in Illinois found in dry, rocky woods in the southern two-thirds of the state. Flowers June to September. Plant has fine, downy hairs that cover the square stems (mint family).
  • Posted by Marilyn (Kentucky - Zone 6a) on May 25, 2013 1:50 AM concerning plant:
    "Scutellaria incana, also Downy Skullcap, is a flowering plant in the family Lamiaceae and is native to North America. It is a perennial and is primarily found in the eastern United States as well as some parts of the Midwest."

    Taken from wikipedia's page at:

Plant Events from our members
aspenhill On May 4, 2012 Obtained plant
DG David (greenthumb99) and Pat (ecnalg) - qty 3
jmorth From July 13, 2014 to August 30, 2014 Bloomed
chelle On February 2, 2015 Seeds sown
2012 seeds
Minimal GA3 soak, warm 3 wks then move outdoors (specified 40 degrees)
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