Lactuca tetrantha, the Troodos lettuce, is a small perennial wild lettuce from the Troodos Mountains of Cyprus, growing 10–30 cm tall on rocky slopes and serpentine outcrops. It is a rare wild species rather than a common garden plant, so care is mainly about giving it sharp drainage and cool, bright conditions.
Family
Asteraceae (Daisy family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Water sparingly, letting the soil dry out between waterings, and avoid waterlogging.
Soil
Very free-draining, gritty or rocky mix with low fertility.
Temperature
10–22 °C; tolerates cold winters, protect from prolonged waterlogged frost.
How easy
Moderate
Native range
Cyprus (Troodos Mts.)
Climate
temperate
About
Lactuca tetrantha, the Troödos lettuce, is an erect, lactiferous, perennial herb, 10–30 cm high. Leaves hairless, deeply dissected, the basal in rosette, oblong, 3-12 x 0.8-2.5 cm, often purplish-green, the upper alternate, smaller. Flowers in capitula, arranged in corymbs, florets 4, ligulate, yellow, reddish at the lower surface, flowers July–October, fruit a pappose achene.
Where it grows
Rocky hillsides and rock crevices on serpentinised rocks at 1500–1900 m altitude.
Text excerpted from the Wikipedia article Lactuca tetrantha 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.