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Blue Hound's Tongue

Cynoglossum creticum

Blue Hound's Tongue
Photo: Vojtech Zavadil, CC BY-SA 3.0

Blue hound's tongue (Cynoglossum creticum) is a Mediterranean member of the borage family, usually a biennial, that has become an invasive weed in parts of the US. It is seldom grown as a garden plant, and its care is best matched to dry, sunny, open ground.

Family
Boraginaceae (Borage family)
Grows as
Perennial
Light
Full sun
Water
Water sparingly once established; let the soil dry out between waterings.
Soil
Well-drained, sandy or poor soil; tolerates lean conditions.
Temperature
Hardy to mild winters; protect from hard frost.
How easy
Easy
Safety
Toxic: All parts contain pyrrolizidine alkaloids, which can damage the liver if eaten in quantity; the plant is toxic like other Cynoglossum species.
Native range
Macaronesia, Medit. to W. & C. Asia
Climate
temperate

About

Cynoglossum creticum is a plant in the family Boraginaceae.

It is native to the Mediterranean Basin, including the island of Crete. It is also found as an invasive plant in the US states of Texas and Missouri, where it is known as blue hound's tongue.

Other Cynoglossum plants

Chinese hound's tongue · Australian Hound's Tongue · Borage Family · Green Hound's Tongue · Borage Family · Gypsyflower · Cynoglossum torvum · Ceylon Hound's Tongue · Hound's tongue

Text excerpted from the Wikipedia article Cynoglossum creticum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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