Location specific values:
Array
(
    [lat] => -8.836820
    [lng] => 13.234320
    [elevation] => 73.8817
    [rainfall] => 513.1363
    [cold_temperature] => 17.9094
    [temperature] => 31.5168
    [user_eto] => 1629.95497472
)

Plant specific values:
Array
(
    [rain_min_irrigation] => 611
    [eto_corrected] => 1088
    [eto_adjusted_rain_min (rain_min_irrigation / eto_corrected)] => 0.56158088
)
Creeping St. John’s-Wort (Hypericum calycinum) | Easyscape Plant Profile

Creeping St. John’s-Wort

(Hypericum calycinum)

Creeping St. John’s-Wort (Hypericum calycinum)

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Estimated Native Range
Species Map Help

Climate Requirements for Luanda, Angola

This Plant Your Site Plant Suitability for Your Location
• Precipitation 8" - 430" 20" Your precipitation may be insufficient for this plant. Irrigate N" / year. Irrigate N" / year
• High Temp. 59°F - 98°F 89°F Your summer temperatures are normal for this plant. Excellent
• Low Temp. -79°F - 60°F 64°F OK, but your winter temperatures are warmer than normal for this plant OK
This plant should grow well at your location with about N inches per year (Y minutes per month) of irrigation.

Summary

Hypericum calycinum, commonly known as Creeping St. John’s-Wort, is an evergreen subshrub native to open woodlands and dry rocky areas in the Balkans and Turkey. This low-growing plant typically reaches 1 m in height and spreads 1–2 m wide, with a creeping habit that makes it an effective ground cover. The ovate leaves are a vibrant green in full sun, turning yellow-green in shade, with a blue-green underside that shifts to purple in the fall. Its large, showy yellow flowers, 3–5 cm in diameter with five petals and numerous stamens, bloom from June to September, resembling single roses or in small clusters.

Creeping St. John’s-Wort is valued for its ornamental flowers, evergreen foliage, and low maintenance requirements, making it suitable for ground cover, soil stabilization on slopes, and border planting in Mediterranean climates. It thrives in full sun to part shade and prefers well-drained acidic soils, although it is adaptable to a range of soil types, including sandy and loamy. Rapid growth through underground stems can lead to invasiveness, particularly in California. To manage its spread and invasiveness, it is recommended to cut the plant back each spring. Gardeners should be aware of its invasive potential and check local regulations before planting.CC BY-SA 4.0

Plant Description

  • Plant Type: Shrub
  • Height: 0.8-1 feet
  • Width: 1.5-2 feet
  • Growth Rate: Rapid
  • Flower Color: Yellow
  • Flowering Season: Summer
  • Leaf Retention: Evergreen

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Water: Medium
  • Drainage: Fast, Medium, Slow

Common Uses

Bank Stabilization, Bee Garden, Bird Garden, Border Plant, Butterfly Garden, Deer Resistant, Drought Tolerant, Erosion Control, Groundcover, Low Maintenance, Rock Garden, Showy Flowers, Street Planting

Natural Habitat

Open woodlands and dry rocky areas in the Balkans and Turkey

Other Names

Common Names: Aaron’s Beard , Rose-Of-Sharon , Great Saint John’s Wort , Jerusalem Star , Großblumiges Johanniskraut , Großblütiges Johanniskraut , Millepertuis À Calice Persistant , Millepertuis À Grandes Fleurs , Prakthyperikum

Scientific Names: Hypericum calycinum , Hypericum canariense , Hypericum grandiflorum , Androsaemum calycinum , Hypericum calycinum f. luteum , Hypericum venosum , Androsaemum webbianum , Ascyrum calicinum , Ascyrum coriaceum , Eremanthe calycina

GBIF Accepted Name: Hypericum calycinum L.