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Hypericaceae
Hypericum Species, St. John's Wort, St. Johnswort
Hypericumoblongifolium
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Family
Hypericaceae
(hy-PER-ee-KAY-see-ee)
Info
Genus
Hypericum
(hy-PER-ee-kum)
Info
Species
oblongifolium
(ob-long-ee-FOH-lee-um)
Info
Synonym
Hypericum aitchisonii
Hypericum cernuum
Hypericum patulum var. oblongifolium
Hypericum speciosum
Sun Exposure
Light Shade
Partial to Full Shade
Foliage
Deciduous
Height
24-36 in. (60-90 cm)
Spacing
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
Danger
Unknown - Tell us
Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Other Details
Category
Groundcovers
Shrubs
Water Requirements
Unknown - Tell us
Foliage Color
Unknown - Tell us
Where to Grow
Unknown - Tell us
Bloom Characteristics
Unknown - Tell us
Bloom Size
Unknown - Tell us
Other details
Unknown - Tell us
Soil pH requirements
Unknown - Tell us
Patent Information
Unknown - Tell us
Propagation Methods
Unknown - Tell us
Seed Collecting
Unknown - Tell us
Regional
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