Photo by Melody

PlantFiles: Catmint
Nepeta transcaucasica 'Blue Infinity'

Family: Lamiaceae (lay-mee-AY-see-ee) (Info)
Genus: Nepeta (NEP-eh-tuh) (Info)
Species: transcaucasica (trans-kaw-KAS-ee-kuh) (Info)
Cultivar: Blue Infinity

2 members have or want this plant for trade.


36-48 in. (90-120 cm)

12-15 in. (30-38 cm)

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)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade


Bloom Color:
Medium Blue

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall


Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Suitable for growing in containers

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
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; direct sow after last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored

Click thumbnail
to view:

By poppysue
Thumbnail #1 of Nepeta transcaucasica by poppysue

By hillfarm
Thumbnail #2 of Nepeta transcaucasica by hillfarm

By northgrass
Thumbnail #3 of Nepeta transcaucasica by northgrass


2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive northgrass On May 27, 2007, northgrass from West Chazy, NY (Zone 4b) wrote:

It is really pretty in bloom and the flowering lasts a good while. The downside is that it reseeds itself so freely forming thick masses. I have removed it from my flowerbeds and placed it with Helianthus "Lemon Queen" and Hydrangea "Annabelle" near the barn where it looks great. I also grow it near the drive where it receives full sun and left to propagate itself at will. One of the best Nepeta I have except for its plentiful reseeding.
Grown easily from seeds ordered from Thomson & Morgan.

Positive hillfarm On Apr 30, 2007, hillfarm from Quesnel, BC (Zone 4a) wrote:

I've grown this Nepeta for about 5 years now, and have in that time developed a sincere affection for it. Flowers in typical catmint loose-spike style are attractive blueish-violet. Fits into any colour scheme. Not hugely showy but it does bloom on and on and on ...

Has self-sown a bit but not a problem seeder at all; original clumps are quite compact; probably could use dividing every few years but so far happy to be left alone. The few babies are easily moved/removed.

Tough plant; drought tolerant; very winter hardy (at least Zone 4); mine get about 3 feet tall and flop a bit by late summer but staking definitely optional; might overshadow low/delicate neighbors so take that into consideration.

Very reliable. Foliage attractively purple-flushed in spring. Starts blooming in June until hard frost (October-ish here).

Would make a nice specimen plant in dry garden or mid- to back-of-border companion in traditional herbaceous border layout.


This plant has been said to grow in the following regions:

Taylorsville, North Carolina
Seattle, Washington

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