Veronica Species, Garden Speedwell, Longleaf Speedwell

Veronicalongifolia

Genus
Veronica (veh-RON-ih-ka)
Species
longifolia (lon-jee-FOH-lee-uh)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
This plant is resistant to deer
Height
36-48 in. (90-120 cm)
Spacing
15-18 in. (38-45 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)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Danger
N/A
Bloom Color
Blue-Violet
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Blooms all year
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
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
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
From herbaceous stem cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

Decatur, Alabama

Georgetown, California

Palo Alto, California

Richmond, California

Vacaville, California

Lawrenceville, Georgia

Buhl, Idaho

Hayden, Idaho

Galva, Illinois

Ladd, Illinois

Hebron, Kentucky

Buckfield, Maine

Pownal, Maine

Roslindale, Massachusetts

Springfield, Massachusetts

Bay City, Michigan

Edwardsburg, Michigan

Flint, Michigan

Mason, Michigan

Columbia, Missouri

Albuquerque, New Mexico

Syracuse, New York

Elizabeth City, North Carolina

Burgettstown, Pennsylvania

Conway, South Carolina

Lenoir City, Tennessee

Fort Worth, Texas

Garland, Texas

Lubbock, Texas

Kaysville, Utah

Leesburg, Virginia

Clearlake, Washington

Fox Island, Washington

Kalama, Washington

Spokane, Washington

Madison, Wisconsin

Muscoda, Wisconsin

show all

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Gardener's Notes:

4
positives
1
neutral
0
negative
Sort By:
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C
ROSLINDALE, MA | July 2013 | positive

The tallest Veronica I know, and the longest blooming. The flower color ranges in hue by cultivar from white to true blue through violet ...Read More

F
Coppell, TX (Zone 8a) | May 2010 | positive

This one is 'Sunny Border Blue' by the way

P
Garland, TX (Zone 8a) | June 2005 | positive

If you love blue flowers, this is definitely one for your garden. I put it in front of a cypress vine and behind coreopsis 'Early Sunris...Read More

L
Buhl, ID | September 2004 | positive

I planted what the tag calls Veronica and Creeping Veronica. The Veronica turned out like Daves picture of speedwell and the creeping ver...Read More

W
Seward, AK (Zone 3b) | November 2002 | neutral

Long-leaf Speedwell is a tall compact clumping perennial of upright habit. Moderately quick-growing & long-lived, it prefers ferile, mois...Read More

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