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botanical name:
Perovskia 'Blue Spire'
Perovskia 'Blue Spire' © Deeproot Plant Base
common name:  Russian sage
synonyms:  Perovskia atriplicifolia 'Blue Spire'
family:  Lamiaceae
characteristics: perennial, scented/aromatic
height: 1.20m
width: 1.00m
growth rate: medium
growth habit: erect
leaf colour: blue-grey
flower colour: violet
stem/bark: grey
main season: Summer
aspect: full sun
conditions: dry soil, moist soil, sandy soil, coastal
preferred soil pH: any
minimum temp: 0°C
USDA zone: 6 to 8
Subshrub with upright grey-white stems of deeply divided silvery blue-grey leaves. Spikes of small electric violet-blue flowers are abundantly borne in late summer and early autumn.

Thrives in hot, dry positions and poor soil. Tolerates chalky soils and coastal conditions.

Cut back in early spring to encourge new growth.

Good plant for dry sunny gardens and also very effective for some landscaping applications, tolerating difficult conditions such as drought and salt, as found near roadsides etc.

other notes:
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