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Veronicastrum, Culver's Root, Blackroot, Great Virginian Speedwell, Siberian Culver's Root 'Red Arrows'

Veronicastrumsibiricum

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Genus

Veronicastrum (ver-on-ee-KAS-trum)

Info

Species

sibiricum (sy-BEER-ah-kum)

Info

Synonym

Sun Exposure

Full Sun

Sun to Partial Shade

Foliage

Deciduous

Herbaceous

This plant is fire-retardant

This plant is resistant to deer

Smooth

Height

4-6 ft. (1.2-1.8 m)

Spacing

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

Hardiness

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)

Danger

Unknown - Tell us

Bloom Color

Blue-Violet

Lavender

Bloom Time

Mid Summer

Late Summer/Early Fall

Other Details

Gardener's Notes:

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positive

neutral

negative

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coriaceous

ROSLINDALE, MA | April 2016 | neutral

Introduced by Coen Jansen.

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