Hardiness: USDA Zone 3a: to -39.9 °C (-40 °F) USDA Zone 3b: to -37.2 °C (-35 °F) 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) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure: Full Sun
Danger: Parts of plant are poisonous if ingested
Bloom Color: Purple
Bloom Time: Late Spring/Early Summer Mid Summer
Other details: Drought-tolerant; suitable for xeriscaping
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral)
Propagation Methods: From seed; direct sow outdoors in fall From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; stratify if sowing indoors From seed; germinate in a damp paper towel Scarify seed before sowing
Seed Collecting: Allow pods to dry on plant; break open to collect seeds
On Apr 23, 2011, bungalow1056 from Winston-Salem, NC (Zone 7b) wrote:
A beautiful Baptisia, easy to grow, vigorous and healthy. It takes a couple of years to really get going but once it does it really is beautiful. I've had zero problems with it. Mine is planted in a spot that receives about 4-6 hours of mostly morning and mid-day sun.
On Jan 5, 2011, gardeningfun from Harpersfield, OH (Zone 5a) wrote:
Transplanted from my friends yard - it was coming up under her sidewalk (it had spread and grown so much over the years). I planted it and I only had some leaves come up all summer - no blooms. So we shall see next year. I planted it in heavy clay soil. She said to give it time to root and grow down. It was really hard to dig up and replant. The roots are really, really deep. See picture.
2011 - it is coming up and looks real good. I have added a picture of the stems coming up in case someone doesn't know what to look for. It looks real healthy.
On Jan 20, 2010, JonthanJ from Logansport, IN wrote:
We set one of these out late in 2006. By 2009, the performance was impressive. The clump lifted two dozen blooming stems. Over the summer the many smallish leaves and branches knitted themselves together so tightly that a stiff wind after hard frost broke all the stems off together and tumbled the crown down the hill.
We like it for the way it holds up down through most of the warm season grass show by continuing to grow new leaves down into September. Spring growth is early, barely waiting for the average date of last frost, mid-May here, to go into bloom. In the fall, the foliage is much more frost sensitive, turning black at temperatures it easily survived in the spring.
Voles can be a serious problem for the Baptisias. Tunneling under the snow, they consider the roots a major food resource.
On Aug 6, 2008, cedar18 from Lula, GA (Zone 7b) wrote:
Very nice plant. Still looks good, shrub like, even in the heat of August. Flowers were unusual in color, looked nice with Tradescantia 'Bilberry Ice.'
This plant has been said to grow in the following regions:
Westport, Connecticut Spring Hill, Florida Lula, Georgia Northfield, Illinois Saint Charles, Illinois Waukegan, Illinois Galena, Indiana Logansport, Indiana Nicholasville, Kentucky Cordaville, Massachusetts Golden Valley, Minnesota (2 reports) Denville, New Jersey White House Station, New Jersey Browns Summit, North Carolina Raleigh, North Carolina Winston-salem, North Carolina Geneva, Ohio Laflin, Pennsylvania Chapin, South Carolina Moore, South Carolina Fate, Texas Leesburg, Virginia Newport News, Virginia Lake Stevens, Washington Glenville, West Virginia Stetsonville, Wisconsin