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perennial

Siberian Catmint

Nepeta sibirica

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Siberian Catmint (Nepeta sibirica) at Parkland Garden Centre

Siberian Catmint flowers

Siberian Catmint flowers

(Photo courtesy of NetPS Plant Finder)

Height:  4 feet

Spread:  24 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  3

Ornamental Features

Siberian Catmint has masses of beautiful spikes of lightly-scented royal blue flowers with lavender overtones rising above the foliage from late spring to early fall, which are most effective when planted in groupings. Its small fragrant pointy leaves remain grayish green in colour throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Siberian Catmint is a dense herbaceous perennial with a mounded form. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This plant will require occasional maintenance and upkeep, and is best cleaned up in early spring before it resumes active growth for the season. It is a good choice for attracting butterflies to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Self-Seeding

Siberian Catmint is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Groundcover
  • Container Planting

Planting & Growing

Siberian Catmint will grow to be about 3 feet tall at maturity, with a spread of 24 inches. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years.

This plant does best in full sun to partial shade. It is very adaptable to both dry and moist locations, and should do just fine under typical garden conditions. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is not originally from North America. It can be propagated by division.

Siberian Catmint is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. Because of its height, it is often used as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden. Be aware that in our climate, most plants cannot be expected to survive the winter if left in containers outdoors, and this plant is no exception. Contact our store for more information on how to protect it over the winter months.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Garden  Groundcover  Container 
Applications
Flowers  Attracts Wildlife 
Ornamental Features
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