Cynoglossum officinale
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Cynoglossum officinale

Hound's-tongue · Gypsy-flower · Houndstongue · Rats-and-mice · Common Hound's-tongue

Tier 2 Difficulty: medium Water: low Light: full_sun
Temperature
10–35 °C
Soil pH
6–7
Hardiness
Zone 6–9
Click count
735
Observations
2,538

Description

Source: leafsnap

Cynoglossum officinale, commonly known as hound's tongue, is a biennial or perennial plant belonging to the Boraginaceae family. Native to Europe and Asia, it has also been introduced and naturalized in North America. The plant can grow up to 1 meter tall and features large, hairy, lance-shaped leaves with pointed tips. Its small, pinkish-purple flowers, each with five petals, are arranged in clusters at the ends of the stems. For centuries, hound's tongue has been used for its medicinal properties, particularly its anti-inflammatory effects. Traditionally, it was a remedy for coughs, colds, wounds, and skin irritations. However, the plant contains toxic alkaloids that can cause liver damage if ingested in large quantities. In addition to its medicinal uses, hound's tongue is valued as an ornamental plant due to its attractive foliage and flowers. It prefers moist soils but can tolerate dry conditions once established. Overall, Cynoglossum officinale is an intriguing biennial or perennial herbaceous flowering plant. Its combination of medicinal qualities and ornamental appeal makes it popular among gardeners worldwide. However, caution is needed, as it is toxic if ingested carelessly by humans or animals.

🌳 Houndstongue is often planted in temperate gardens because of its beautiful maroon flowers, distinctive fuzzy foliage, and low-maintenance nature. It is typically used in cottage and meadow gardens or as part of a pollinator garden.

🎭 Soul that needs upliftment

Care Guide

💧 Water
☀️ Light Full sun
Ideal: Full sun
🌡️ Temperature 10–35°C
Ideal temperature: 10–35°C
💨 Humidity
Humidity:
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer
🪴 Pot & Repot
✂️ Pruning
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Herb
Life Cycle
Biennial, Annual, Perennial
Genus
Cynoglossum
Family
Boraginaceae
Hardiness Zone
6-9
Mature Height
30 cm to 91 cm
Mature Spread
30 cm
Leaf Color
Green
Leaf Type
Deciduous
Flower Color
Purple
Flower Size
0.51 cm to 1.02 cm
Bloom Time
Late spring, Early summer, Mid summer
Planting Time
Spring, Autumn
Harvest Time
Mid summer
Native Area
Turkey, Sweden, Austria, Slovakia, Montenegro, Slovenia, Croatia, Belarus, Russia, Germany, Estonia, Romania, Latvia, Belgium, Netherlands, France, Czech Republic, Bulgaria, Armenia, Poland, Greece, Ukraine, Serbia, Lithuania, Norway, Kyrgyzstan, Kazakhstan, Italy, Spain, Switzerland, Denmark, Finland, Iran, Albania, Ireland, United Kingdom, Hungary, Azerbaijan

Tags (5)

Common Names (9)

en Hound's-tongue
en Gypsy-flower
en Houndstongue
en Rats-and-mice
en Common Hound's-tongue
en Cuneglæsse
en Common Houndstongue
en Forget Me Not Cynoglossum Blue
en Dog's Tongue