Salvia, Cancer Weed, Lyreleaf Sage 'Purple Knockout'

Salvialyrata

Family
Lamiaceae (lay-mee-AY-see-ee)
Genus
Salvia (SAL-vee-uh)
Species
lyrata (ly-RAY-tuh)
Synonym
Spacing
12-18 in. (30-45 cm)
Hardiness
12-15 in. (30-38 cm)
Sun Exposure
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)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
Full Sun
Sun to Partial Shade
Bloom Color
Bloom Time
Blue-Violet
Lavender
Medium Purple
Foliage
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter
Other Details
Other details
Grown for foliage
Evergreen
Smooth
Veined
Propagation Methods
Seed Collecting
From seed; winter sow in vented containers, coldframe or unheated greenhouse
Soil pH requirements
Collect seedhead/pod when flowers fade; allow to dry
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds
Patent Information
Foliage Color
Bloom Characteristics
Water Requirements
Perennials
Where to Grow
Regional

This plant is said to grow outdoors in the following regions:

Tuskegee, Alabama

Uriah, Alabama

Clayton, California

Fairfield, California

Penn Valley, California

Denver, Colorado

Gainesville, Florida

Douglas, Georgia

Leesburg, Georgia

Itasca, Illinois

Dracut, Massachusetts

Jamesburg, New Jersey

Burlington, North Carolina

Elizabeth City, North Carolina

Flat Rock, North Carolina

Monroe, Ohio

Aloha, Oregon

Mill City, Oregon

Oak Hills, Oregon

Lansdowne, Pennsylvania

Norristown, Pennsylvania

West Chester, Pennsylvania

Murfreesboro, Tennessee

Belton, Texas

Cleveland, Texas

Houston, Texas

Livingston, Texas

Mont Belvieu, Texas

Rowlett, Texas

Kalama, Washington

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Gardener's Notes:

3
positives
1
neutral
0
negative
Sort By:
Sort By:
L
Ponte Vedra Beach, FL | November 2017 | positive

Similar to ajuga but native to Eastern US (all the way down to central/southern Florida).
I'm using it as a partial sun/shade rep...Read More

R
Downingtown, PA | June 2016 | positive

I've seen this plant in a few different spots in my biggest customer's yard in southeast Pennsylvania. I did not know what is was for yea...Read More

O
Monroe, OH (Zone 6a) | November 2014 | positive

It gets around, but it's easy (here) to keep under control. Others may have a harder time with it.

I'd much sooner have th...Read More

B
Braselton, GA (Zone 8a) | March 2007 | neutral

Short/Med - Plant 12" apart. Zone 5-8. Great foliage plant. Deep chocolate purple leaves stay close to the ground. Blue purple flowers ri...Read More

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