Hypericum coris
Heath-leaved St. John's wort
Family HypericaceaeAlso called Yellow coris
About
A low shrub of the western Alps with whorled, heath-like leaves. It has been grown in gardens since the 18th century for its long flowering season.
Care at a glance
- Pet safety
- Not recorded. We have no source on whether this plant is safe for cats, dogs or other pets — that is not the same as safe. Keep it out of reach until you have checked.
- People
- Not recorded.
- Light
- Full sun.
- Water
- Moderate water.
- Mature size
- 10–40 cm tall.
Field notes
Morphology
A dwarf shrub 10–40 cm tall from a woody branching base. Slender stems carry leaves in whorls of four, dull grey-green beneath. Unusually for the genus, its wood vessels contain dark-staining substances.
Distribution & habitat
Sunny calcareous rocks at 120–2,000 m in Switzerland, northwestern Italy and the far southeast of France.
Ecology
Flowers June to July.
Cultivation notes
Grown as an ornamental in rock gardens; it needs full sun and moderate water and adapts well to cultivation.
History & etymology
Described by Linnaeus in 1753; the type species of sect. Coridium. Resembles H. asperuloides but differs in capsule and seed.
Conservation
Rated least concern in France.
Habitat
- Altitude
- Not recorded
- Altitude class
- —
- Native to
- Switzerland, Italy, France
Cultivation
- Difficulty
- Not recorded
Text adapted from Wikipedia, CC BY-SA 4.0.
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