Skullcap

FAMILY: Lamiaceae | GENUS: SCUTELLARIA

TYPE
  • Annuals
  • Perennials
SUN EXPOSURE
  • Full Sun
  • Partial Shade
WATER
  • Moderate Water
  • Regular Water

Plant Details

These clump-forming plants are mint relatives, with the family's typical square stems and paired leaves. Long, tubular flowers flare out into two lips, the upper one narrow and hooded, the lower one broad; in many species, the lower lip is marked in white. The species listed here are easy to grow in light, gravelly, well-drained soil; tolerate drought and alkaline soil.

drummond skullcap

scutellaria drummondii

  • Annual.
  • Native to Texas, New Mexico, Oklahoma, Florida, Louisiana, Arizona, and Mexico.
  • Upright, branching plant forms a mound 1 feet tall and wide.
  • Oval, gray-green leaves to 1 inches long; lavender spring flowers about 12 inches across.

ocmulgee skullcap

scutellaria ocmulgee

  • Perennial.
  • Zones MS, LS, TS; USDA 7-10.
  • Native to Georgia and South Carolina.
  • Upright grower to 2 feet tall and 3 feet wide, with fuzzy, gray-green leaves to 3 inches long.
  • Midsummer blooms are lavender-blue.
  • Rare in nature and in commerce.
  • Listed as a threatened species in Georgia.

resinous skullcap, prairie skullcap

scutellaria resinosa

  • Perennial.
  • Zones MS, LS, TS; USDA 7-10.
  • Native from Kansas and Colorado south to Texas and Arizona.
  • Mounding plant 68 inches tall, 1 feet wide, with roundish, resinous, grayish green leaves less than 12 inches long.
  • One-sided, elongated clusters of 1 inches., blue-violet flowers are produced in late spring.
  • Deadhead to encourage intermittent bloom through autumn.
  • Smoky Hills grows 1012 inches high and 1215 inches wide; flowers are deep purplish blue.

pink skullcap

scutellaria suffrutescens

  • Perennial.
  • Zones MS, LS, CS; USDA 7-9.
  • From Mexico.
  • Forms a dense mound to 1 feet tall, 112 feet wide, with oval, bright green leaves just 12 inches long.
  • Deep rosy pink flowers to 1 inches long bloom from late spring until frost.
  • Texas Rose is a superior selection.

scutellaria 'Violet Cloud

  • Perennial.
  • Zones US, MS, LS; USDA 6-8.
  • Sterile hybrid resulting from a cross between Scutellaria resinosa and Scutellaria suffrutescens.
  • Forms a low mound about 8 inches high and 12 inches wide, with profuse deep violet blooms from late spring through fall.

shrubby skullcap

scutellaria wrightii

  • Perennial.
  • Zones LS, CS, TS; USDA 8-11.
  • Native to Texas and Oklahoma.
  • Mounding plant 610 inches high and a bit wider, with small, rounded, green leaves.
  • Deep violet-blue, 12- to 1 inches-long flowers have prominent white anthers that give them a striped appearance.
  • Blooms heavily in June, then off and on until frost.
  • Good for massing and rock gardens.
  • Evergreen in mild-winter areas.

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