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Veronica, Speedwell 'Blue John'

Veronicalongifolia

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Genus
Veronica (veh-RON-ih-ka)
Info
Species
longifolia (lon-jee-FOH-lee-uh)
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
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Spacing
18-24 in. (45-60 cm)
Hardiness
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)
Danger
N/A
Bloom Color
Dark Blue
Blue-Violet
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Foliage Color

Unknown - Tell us

Where to Grow
Grow outdoors year-round in hardiness zone
Can be grown as an annual
Bloom Characteristics
Flowers are good for cutting
This plant is attractive to bees, butterflies and/or birds
Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

Soil pH requirements

Unknown - Tell us

Patent Information
Non-patented
Propagation Methods
By dividing the rootball
From herbaceous stem cuttings
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional
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coriaceous
ROSLINDALE, MA | April 2016 | neutral

In the Chicago Botanic Garden's 2010 Veronica evaluation, 'Blue John' was one of the seven top performers (out of 61 taxa evaluated). [...Read More

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