271B-3-Hypericum-japonicum-fl-Andre-Messina.jpg

Hypericum japonicum

Matted St. John's wort

Trailing or matting perennial herb with 4-ridged stems, rooting from leaf nodes.

Additional information

  • FamilyHypericaceae
  • StoreyLower storey
  • Sizeto 8 cm x 15 cm
  • Plant groupingHerbs & Groundcovers <1m
  • LeavesElliptic to oblong green leaves, broader towards tip, 2-10 mm x 2.5-5 mm, spreading not erect, margins wavy.
  • Flower colourYellow
  • Flowering timeOctober to March
  • FlowersTerminal, often single flowers to 8 mm across. Mature fruit shorter or equal to calyx lobes.
  • Bird attractingNo
  • Butterfly attractingNo
  • Frog habitatNo
  • Growing conditionsMoist soil in cool moist forests. Dappled to full shade.
  • Garden useA tiny plant which could be used as a matting plant in small moist shady gardens.
  • Commercially availableWholesale only - order in advance
  • Conservation statusLocally common within its preferred growing conditions
  • Related speciesSee comments under Hypericum gramineum.
Photographer/s: 1, 2, 4 Marilyn Bull ©; Andre Messina, Royal Botanic Gardens Board ©

Plant Communities

  • 30 Swamp Gum Swampy Riparian Woodland (EVC 83)
  • 44 Grassy Wetland Complex (EVC 125)
  • 11 Manna Gum Riparian Forest - Central Highlands (EVC 18)
  • 39 Sedge Wetland Complex (EVC 136)
  • 15 Scented Paperbark Riparian Thicket - Middle & Upper Yarra (EVC 59)
  • 22 Silver-leaf Stringybark Heathy Woodland (EVC 48)
  • 20 Messmate Lowland Forest (EVC 16)
  • 21 Broad-leaf Peppermint Heathy Dry Forest (EVC 20)
  • 06 Mountain Ash Wet Forest - Dandenongs (EVC 30)
  • Page 1 of 1