Olimpinė jonažolė – Hypericum olympicum

Olimpinė jonažolė

PLANT NAME
Lithuanian plant nameOlimpinė jonažolė
Latin plant nameHypericum olympicum L.
English plant nameSt. John’s Wort
TYPE OF PARTERRE
  • Flowerbed, parterres
  • Clump, beds (mixborder)
  • Groups
  • Rockery, retaining walls
  • Wild plant parterre
  • Solitaire
  • Combination with woody plants
ASSORTMENTsupplementary
GROWING PLACE CHARACTERISTICS
Soil
  • average wet soils
Lighting
  • Heliophilous
Spacing, cmFrom 30 to 40
PLANT HEIGHT AND HABITUS
Height
  • short – 21-40 cm
Habitusflower with expressive habitus, for design as accent
PLANTS ORNAMENTALITY
Leaf color
  • green
Blossom color
  • yellow, yellow tints
Blooming time
  • spring - April Second Decade - June First Decade
  • 1-st half of the summer - June 2-nd decade- July 2-nd decade
Blooming period2 months
General ornamentalityvery decorative
Ornamentality duration, months5
Grouplogn-lived perennial (grown 7 and more years)
Bioecological groupPerennial
PLANT PROPAGATION
Propagation methods: seeds, cuttings. Propagation by scrub division is complicated and used rarely. Flower is propagated by scrub division in cold beds in Spring. Seeds are small. 3500 seeds per 1 gram. 1000 seedlings per 1 gram of seed sown. Seeds stay viable for 2 years. Seeds stay viable for 2 years. Seed viability percentages declined to 10-20% after a 3 year of storage Seeds germinate in 15-20 days. The flower is propagated by scrub division in cold beds in substrate of sand and peat (1:1) in the first part of Summer.