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Physical description: Nepeta x faassenii is a sterile hybrid
between N. mussinii and N. nepetella. This perennial
plant has a clump, mound-forming habit, and reaches 18 in. tall.
Leaves are deciduous--although basal leaves often stay green
during the winter--and are narrow, opposite, with toothed edges.
They are silvery gray, pubescent on both sides, aromatic when
crushed (mint fragrance), and reach 1 ½ in. long. Flowering
occurs in late spring and continues throughout the summer. Lavender
flowers are trumpet-shaped and are borne in spikes of ½
in. long. Stems reach 18 in. long. No fruit is produced.
Optimal growing conditions: Catmint may be adaptable to a wide range of well-drained
soils. It is tolerant to pH and texture, and is very drought-resistant.
It performs best in full sun. Growth is moderate. This plant
is thought to be allelopathic. Winter hardiness: Zones 3-8.
Susceptibility to pests and diseases: This species has no serious pest or disease problems.
In poorly drained soils, crown rot is sometimes problematic.
Use:
Catmint is suitable in many gardens and in front of borders,
especially in hot and dry places, where its drought resistance
may be valuable.
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