Teucrium Speedwell: Features and Care

Teucrium speedwell is a perennial plant known for its vivid blue-violet flower spikes that bring a refreshing touch to the garden. It blooms from late spring to summer and is valued as a cut flower and a border accent.
This article explores the basic information, cultural and historical background, and growing tips for Teucrium speedwell.
Basic Information
- Scientific name: Veronica teucrium
- Family: Plantaginaceae
- Origin: Europe, Caucasus region
- Appearance: Reaches a height of 30 to 70 cm. The upright stems produce clusters of small, blue-violet flowers. The leaves are oval with slightly serrated edges, creating a clean and tidy silhouette.
- Blooming season: May to July
Cultural Characteristics Around the World
Teucrium speedwell has long been appreciated as a garden plant, particularly in Europe. In countries like Germany and Austria, it can be seen growing naturally in meadows and mountain foothills and is often used in informal or naturalistic gardens.
In the UK, since the 19th century, it has been widely incorporated into mixed border gardens, where its clear blue hue complements surrounding plants. Recently, it has gained renewed attention as a fitting choice for natural gardens across Western countries due to its wildflower-like charm.
Historical Background

Plants of the Veronica genus were known in ancient Rome and cultivated in monastery gardens during the Middle Ages. Veronica teucrium was formally named and recorded in the 18th century by Swedish botanist Carl Linnaeus, during the development of botanical taxonomy.
From then on, it was bred and selected in countries like the UK and Germany for garden use. In 19th- and early 20th-century horticultural literature, it was often featured as a popular blue-flowering perennial, indicating its stable presence in garden culture.
Gardening Tips
Teucrium speedwell thrives in sunny, well-ventilated locations and brings a refreshing accent to early summer gardens. Follow these tips for successful cultivation:
Sunlight
Prefers full sun. Choose a location that receives direct sunlight for most of the day.
Watering
Avoid overwatering. Water thoroughly when the surface of the soil dries out. During dry spells, water in the early morning or evening.
Soil
Well-drained soil is best. Improve heavy clay with compost or pumice to enhance aeration.
Fertilizer
Requires little feeding. Apply a slow-release fertilizer in early spring for steady blooming.
Pruning
Trim back spent flower stems to encourage new growth. Cut back near the base in autumn for a neat appearance.
Cold Hardiness
Hardy to frost. In colder regions, mulch around the base to provide extra protection during winter.
Conclusion
Teucrium speedwell is a European perennial that enchants gardeners with its neat, blue-violet flowers from late spring to summer. It was first classified in the 18th century and has since gained popularity in gardens across Germany, the UK, and other regions.
Its elegant form and adaptability make it a preferred plant for border or natural gardens. With appropriate care and seasonal pruning, it can bloom repeatedly and remain a reliable presence in the garden for many years.