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Height: 24-36 in. (60-90 cm) 36-48 in. (90-120 cm) 4-6 ft. (1.2-1.8 m) 6-8 ft. (1.8-2.4 m) 8-10 ft. (2.4-3 m) 10-12 ft. (3-3.6 m) 12-15 ft. (3.6-4.7 m) 15-20 ft. (4.7-6 m)
Spacing: 24-36 in. (60-90 cm) 36-48 in. (90-120 cm) 4-6 ft. (1.2-1.8 m) 6-8 ft. (1.8-2.4 m) 8-10 ft. (2.4-3 m) 10-12 ft. (3-3.6 m) 12-15 ft. (3.6-4.7 m) 15-20 ft. (4.7-6 m)
Hardiness: 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) USDA Zone 11: above 4.5 °C (40 °F)
Sun Exposure: Full Sun Sun to Partial Shade
Danger: Handling plant may cause skin irritation or allergic reaction
Bloom Color: Violet/Lavender
Bloom Time: Late Spring/Early Summer Mid Summer Late Summer/Early Fall
Foliage: Grown for foliage Deciduous Blue-Green Aromatic
Other details: May be a noxious weed or invasive Flowers are fragrant Drought-tolerant; suitable for xeriscaping Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 5.1 to 5.5 (strongly acidic) 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
On May 14, 2009, Kodyjane from Muskegon, MI wrote:
I bought this plant last fall. I saw it growing at a local tree farm and it was beautiful. They said they always cut it back to the ground in spring and it grows to four feet tall and wide by end of summer. So far this spring, I have seen only very tiny shoots at the base of the otherwise dead-looking bare plant. Maybe it is slow to emerge. It is planted in full sun. I will report more as the season continues.
On Mar 18, 2008, khopton from Adelaide Australia (Zone 10a) wrote:
Love it!! I planted it in full sun in late winter while it was dormant and only about a foot high and this summer it shot up to about 5' and bloomed and bloomed. Stunning flowers, fast growing and very tough in full sun, high heat (we had two weeks of 104F dry heat this year) and little water. I dead headed once in summer and it gave me another flush of beautiful purple flowers. Highly recommended!
Shoal Creek is a hybrid, and may not come true from seed. Tends to be more showy than open pollinated cultivars, with longer bloom spikes up to 12" long. Color is also a little more vibrant. Blooms (lavender-blue) in both spring and fall and is fairly drought tolerant.
This plant has been said to grow in the following regions:
, Calera, Alabama Ladonia, Alabama Maricopa, Arizona Fayetteville, Arkansas Black Diamond, Florida Dunnellon, Florida Keystone Heights, Florida Trenton, Florida Cordele, Georgia Richmond Hill, Georgia Townsend, Georgia Derby, Kansas Breaux Bridge, Louisiana Gonzales, Louisiana (2 reports) Hammond, Louisiana Inniswold, Louisiana Monroe, Louisiana Norton Shores, Michigan El Cerro-monterey Park, New Mexico Kirtland, New Mexico Hayesville, North Carolina Hoot Owl, Oklahoma Centerville, South Carolina Summerville, South Carolina Austin, Texas (2 reports) Corpus Christi, Texas (2 reports) Dallas, Texas Desoto, Texas Elgin, Texas Frisco, Texas Grand Prairie, Texas Jacksonville, Texas Port Arthur, Texas Temple, Texas Alexandria, Virginia Norfolk, Virginia