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botanical name:
Veronica austriaca ssp. teucrium 'Crater Lake Blue'
Veronica austriaca ssp. teucrium 'Crater Lake Blue' © Deeproot Plant Base
common name:  Speedwell
synonyms:  Veronica teucrium 'Crater Lake Blue'
family:  Scrophulariaceae
characteristics: perennial
height: 0.30m
width: 0.60m
growth rate: medium
growth habit: clump
leaf colour: green
flower colour: blue
main season: Summer
aspect: full sun, part shade
conditions: dry soil, moist soil
preferred soil pH: any
minimum temp: -29°C
USDA zone: 5 to 8
description:
Clump forming perennial. Upright stems with spikes of dark blue flowers over a long period in summer.

cultivation:
Moderately fertile, moist, well-drained soil in sun. Fairly drought tolerant.

other notes:
RHS AGM.

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