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Longleaf Speedwell
Also known as: Long-leaved speedwell
Longleaf Speedwell (Veronica longifolia) is a flowering perennial plant native to lakes and rivers in Europe. These flowering plants are often sold commercially for ornamental use under the trade name Blue Giantess. Longleaf Speedwell are often grown in groups in cottage gardens. Taller plants may need physical support. Longleaf Speedwell are considered easy to grown in well-drained soils in sunlight.
Scientific classification
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Perennial
Lifespan
Herb
Plant Type
Late spring, Summer
Bloom Time
Late spring, Summer, Fall
Harvest Time
60 cm to 1.2 m
Plant Height
30 cm to 60 cm
Spread
Green
Leaf Color
5 mm to 7 mm
Flower Size
Deciduous
Leaf type
10 - 35 ℃
Ideal Temperature

Images of Longleaf Speedwell

Distribution of Longleaf Speedwell

Distribution Map
Longleaf Speedwell has an enormous native distribution, growing in coastal and waterside locations over virtually all of the central and northern countries of Eurasia.
Native
Cultivated
Invasive
Introduced
No species reported
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Habitat
Steppes, grassy mountain slopes, meadows at forest edges and birch forests
Hemisphere Trend Curve

Culture

Garden Use
Longleaf Speedwell's dramatic flower spikes make it particularly attractive when planted en masse or in clumps. This is a great choice for a cottage or informal garden. Some people choose to use it in prairies, meadows, or a wildflower garden, where its height makes it stand out strikingly above shorter grasses.
Symbolism
Loyalty and fidelity
Interesting Facts
Leprechauns and four-leaf clovers have always been considered good luck charms. While these symbols are well known, there may be one you have not seen before. The longleaf Speedwell has long been considered a good-luck charm that when pinned or sewn to one’s clothing would protect them in their travels.
Name Story
Garden speedwell: It is a well-known grass weed that can be found in most gardens. Depending on the variety, it can also be a groundcover plant and some of it actually serves as an ornamental plant. Since it grows speedily and is commonly planted in gardens, it is called garden speedwell.
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Cultivars

There are several recognized cultivars of Longleaf Speedwell, including the following common varieties :

Care Guide for Longleaf Speedwell

Every week
Water
Full sun
Sunlight
10 - 35 ℃
Ideal Temperature
Garden Soil
Soil Type
Water: Native to moist meadows, longleaf Speedwell prefers evenly moist soil and requires weekly watering to maintain soil balance. It adapts well to outdoor gardens, benefiting from natural rainfall, and thrives with adequate hydration during the growing season for lush flowering and robust growth.
Fertilize: For longleaf Speedwell, use balanced fertilizers like 10-10-10 in early spring and mid-summer. Apply a light dose to avoid overload, reduce during blooming for phosphorus-rich types, and avoid late fall fertilization. Thorough watering post-fertilization promotes nutrient absorption, enhancing foliage and flower vitality.
Pruning: Longleaf Speedwell features dense spikes of tiny blue flowers and lance-shaped leaves. Prune back one-third in early spring for bushier growth, and deadhead after blooming to encourage continuous flowering. Pruning enhances airflow, reduces disease risk, and promotes vibrant blooming during its growth cycle.
Propagation: Longleaf Speedwell is a vigorous perennial with violet blooms, thriving in well-draining soil. Propagation is best achieved through rootball division in spring or autumn. Maintaining moisture after division fosters healthy root development, leading to robust displays of longleaf Speedwell's flowers.
Repotting: Repot longleaf Speedwell every 2-3 years in spring for optimal growth. Use a spacious container, maintain consistent moisture, and avoid waterlogging. Longleaf Speedwell thrives in full sun to partial shade, and its beautiful blooms and foliage reward careful care.
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