Common Name: catmint
Type: Herbaceous perennial
Family: Lamiaceae
Zone: 4 to 8
Height: 2.00 to 2.50 feet
Spread: 2.50 to 3.00 feet
Bloom Time: April to September
Bloom Description: Lavender blue
Sun: Full sun to part shade
Water: Dry to medium
Maintenance: Low
Flower: Showy
Leaf: Fragrant
Tolerate: Rabbit, Deer, Drought, Dry Soil, Shallow-Rocky Soil, Air Pollution
Culture
Easily grown in average, dry to medium, well-drained soils in full sun to part shade. Thrives in dry soils and is very tolerant of drought. Somewhat intolerant of the heat and humidity of the deep South, however, and appreciates some light afternoon shade in hot summer climates such as the St. Louis area. Shear flower spikes after initial flowering to promote continued bloom. May aggressively self-seed in optimum growing conditions.
'Walker's Low' must be propagated by division because seeds are sterile.
Noteworthy Characteristics
Nepeta racemosa, commonly called catmint, is Native to the Caucusus and northern Iran. It is a low-growing perennial that typically forms a spreading clump of decumbent, ascending and upright stems to 12” tall and 18” wide. Features gray-green, hairy, ovate leaves (to 1” long) with crenate margins, prominent veining and heart-shaped bases. Leaves are highly aromatic when crushed or bruised. Pale lilac to deep violet two-lipped flowers (1/ 2” long) clustered in loose raceme-like verticillasters (false whorls) bloom in spring. Bloom may continue throughout summer into early fall under proper growing conditions and with proper shearing of spent flowers. Although Nepeta cataria is the true catnip which drives house cats ecstatic, the leaves of this species are also attractive, albeit somewhat less enticing, to cats. N. mussinii Spreng. (plant named by Curt Polykarp Joachim Sprengel, 1766-1833. German professor of medicine and botany) is synonymous with N. racemosa, but N. mussinii hort. (plants sold in the horticulture trade) is synonymous with N. x faassenii.
Genus name comes from the Latin name for certain aromatic plants that included catmint. It may honor the city of Nepete (known as Nepi today) located north of Rome in Etruria which was the ancient country located between the Arno and Tiber Rivers and was recognized, prior to the rise of Rome, as the center of the Etruscan civilization.
Specific epithet means with flowers in racemes.
'Walker's Low' will grow 24-30 inches tall - not really a low grower. It features loose whorls of small, abundant, two-lipped, trumpet-shaped, lavender-blue flowers.
Problems
No serious insect or disease problems.
Uses
Rock gardens, border fronts, herb gardens or naturalized plantings. Also good plant for edging or small scale ground cover.