Hypericum Species, St. John's Wort, St. Johnswort

Hypericumoblongifolium

Family
Hypericaceae (hy-PER-ee-KAY-see-ee)
Genus
Hypericum (hy-PER-ee-kum)
Species
oblongifolium (ob-long-ee-FOH-lee-um)
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)
Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Other Details
Category
Groundcovers
Shrubs
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Propagation Methods
Seed Collecting
Regional

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Gardener's Notes:

0
positive
0
neutral
0
negative
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Featured
Bird-dropping Spider
(Celaenia excavata)
Downy Woodpecker
(Picoides pubescens)