Spacing: 12-15 in. (30-38 cm) 15-18 in. (38-45 cm)
Hardiness: USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure: Sun to Partial Shade Light Shade Partial to Full Shade
On Mar 4, 2011, davidmk from Austin, TX (Zone 8b) wrote:
I planted S. ovata here in Austin TX 5 years ago after seeing it at the LBJ Wildflower Center. From one 4" pot it has spread to ~100 square feet area of the bed it is in. It has these bulbous roots that are difficult to pull up and the plant will regrow from them if they are left behind.
It is pretty and a native but in my front yard garden it is too aggressive and does not behave well. For some this may be desired but I want people to be aware so they do not end up battling this plant.
On Sep 6, 2007, Fairy1004 from (bestest fairy)Temperance, MI (Zone 5b) wrote:
I love mine, it looks really pretty with several stems, each with a lot of flowers. I
looked up propagation from Univ. of Teaxs at Austin website & this is what they have:
"Take cuttings in fall as soon as the tips emerge. Seed works too but germination not as reliable. Plants go dormant over summer and there can be alot of loss due to rotting over the summer. Probably best to water pots infrequently over summer.
Maintenance: Gardeners cut back seedheads in early summer."
To me that only makes sense if we flip it, since this is from a much warmer zone. Please let me know if I'm wrong!!
On Sep 2, 2006, Magpye from NW Qtr, AR (Zone 6a) wrote:
Heart-leaved Skullcap (Scutellaria ovata)
Purple flowers with white lower lips are in spikes at the tops of the plants, and measure nearly 1 inch (2.5 cm) long. The calyx is humped on the underside. Leaves are often heart-shaped, but also may lack the indentation at the base. The leaf edges are roughtly toothed. The stems and undersides of the leaves are hairy. The plants are large, up to 2 ½ feet (75 cm) high. Open woodlands, edges, roadsides in timbered areas, often abundant in disturbed ground such as cut-overs.
This plant has been said to grow in the following regions:
Deer, Arkansas Bowling Green, Ohio Eufaula, Oklahoma Bethlehem, Pennsylvania Summerville, South Carolina Austin, Texas (3 reports) New Braunfels, Texas Spring Branch, Texas Leesburg, Virginia Lexington, Virginia