Hypericum calycinum (St. John's wort)

Hypericum calycinum (St. John's Wort)

Pronunciation: hy-PEER-ih-kum ka-LEE-sin-um

hycah1.jpghycah3.jpg

Family: Clusiaceae
Plant type: Ground cover, semi-evergreen
Zone: 6
hycal2.jpgOrigin: Bulgaria and Turkey
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Mature size
  Height: 0.2-0.4 m
  Spread: >25m
Form: mounded, oval, horizontal
Texture: medium
Habit: spreading
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hycaf2.jpgLeaves
Arrangement: simple opposite, sessile
Shape: elliptic, oblong, ovate
Size: 2-2.5 cm wide x 6-7 cm long
Margin: entire
Characteristics: pinnate venation, rugose, rounded, obtuse
Colour: green, dark green with paler undersides in summer, green in fall
………
Flowers
Inflorescence type: floriferous, flowers solitary, perfect
Colour: yellow, showy
Size: 6.9-8.1 cm diameter, 5 petals
Time: July, August, September
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Stem
Colour: red, brown
Description: smooth
………
Fruit type: capsule
Colour: brown
hycao.jpgTime: July, August, September
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Exposure -  deep shade, filtered shade, full sun, part sun/shade
Preferred soil -  well - drained
Landscape uses - dryland, erosion control, ground cover, mass planting, rock garden, summer interest 
Propagation -  seed, division - below ground parts
Comments - can be considered as nuisance weeds in farm land or gardens
- used medicinally in psychiatric medicine, can be beneficial with light or moderate depression and OCD 
- has antibiotic properties, 
"The little holes where of the leaves of Saint Johns wort are full, doe resemble all the pores of the skin and therefore it is profitable for all hurts and wounds that can happen thereunto." - William Coles (1626-1662)

Pests - pest and disease resistant

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