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Veronica longifolia

Veronica longifolia
Longleaf Speedwell, Garden Speedwell, Long-leaf Veronica

4,1/5
12 reviews
3 reviews
1 reviews
1 reviews
3 reviews

NOTHING, I got nothing, not even a single shoot. On this one

Domiboop, 17/06/2025

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This plant carries a 12 months recovery warranty

More information

Large deciduous perennial with an upright habit, this speedwell bears long spikes of intense violet-blue throughout the summer above dentate foliage. Very hardy, it thrives in full sun or partial shade in fertile, moist to wet soil. It can be used in natural-looking borders, moist prairies and near water features.
Flower size
25 cm
Height at maturity
1 m
Spread at maturity
50 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -20.5°C
Soil moisture
Moist soil, Damp soil
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Best planting time March, October
Recommended planting time February to May, September to November
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Flowering time June to September
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Description

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Perennial veronica: planting and care
Family sheet
by Eva 11 min.
Perennial veronica: planting and care
Read article

Veronica longifolia in pictures

Veronica longifolia (Flowering) Flowering
Veronica longifolia (Foliage) Foliage

Flowering

Flower colour blue
Flowering time June to September
Flower size 25 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Plant habit

Height at maturity 1 m
Spread at maturity 50 cm
Growth rate normal

Botanical data

Genus

Veronica

Species

longifolia

Family

Plantaginaceae

Other common names

Longleaf Speedwell, Garden Speedwell, Long-leaf Veronica

Botanical synonyms

Veronica maritima, Pseudolysimachion longifolium, Veronica septentrionalis, Veronica exaltata

Origin

Northern Europe, Central Europe, North Asia

Product reference77801

Planting and care

Veronica longifolia is planted from February to April or from September to November, outside frost periods; March and October offer the most favourable conditions. A sunny position is suitable if the soil remains consistently moist to wet in spring and summer. The soil should be deep, fertile, rich in humus and moist to wet, whether neutral or calcareous. Clay soil is acceptable if water does not stagnate there for long periods. At planting, the soil should be loosened and enriched with well-rotted compost. Regular watering is necessary during the first summer. Division of the stumps is carried out in spring or autumn when the clump becomes large.

Planting period

Best planting time March, October
Recommended planting time February to May, September to November

Intended location

Suitable for Meadow, Pond edge
Type of use Border
Hardiness Hardy down to -20.5°C (USDA zone 6b) Show map
Ease of cultivation Beginner
Exposure Sun, Partial shade
Soil pH Neutral, Calcareous
Soil type Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, Damp soil, deep, well-drained

Care

Pruning instructions Faded spikes can be cut back to prevent spontaneous sowings. The dry stems are pruned back to soil level in late winter.
Pruning Pruning recommended once a year
Pruning time March, July to September
Disease resistance Good
Overwinter Can be left in the ground
4,1/5

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