Ziboldo raktažolė- Primula sieboldii

Ziboldo raktažolė

PLANT NAME
Lithuanian plant nameZiboldo raktažolė
Latin plant namePrimula sieboldii E.Morr.
English plant nameJapanese Star Primrose
TYPE OF PARTERRE
  • Flowerbed, parterres
  • Clump, beds (mixborder)
  • Pods
  • Groups
  • Rockery, retaining walls
  • Cemetery
  • Wild plant parterre
  • Combination with woody plants
ASSORTMENTsupplementary
GROWING PLACE CHARACTERISTICS
Soil
  • average wet soils
Lighting
  • Heliophilous
  • Half heliophobic
Spacing, cmFrom 20 to 25
PLANT HEIGHT AND HABITUS
Height
  • short – 21-40 cm
Habitusflower with non-expressive habitus, for background
PLANTS ORNAMENTALITY
Leaf color
  • green
Blossom color
  • red, red tints
  • violet
Blooming time
  • spring - April Second Decade - June First Decade
Blooming period1 month
General ornamentalitylittle decorative
Ornamentality duration, months3
Groupintermediate type perennial (grown 5-6 years)
Bioecological groupPerennial
PLANT PROPAGATION
Propagation methods: seeds, scrub division, cuttings. All species which mature seeds are propagated by seeds. The easiest way to propagate P. denticulata and P. florindae by seeds. Propagation by seeds is complicated of P. elatior, P. vulgaris, P. auricular, because viability percentages of seeds declined to 60-80% after a year of storage. Seeds are sown in beds or boxes outdoors after picking up or in Autumn Seeds are small (especially of P. denticulata), they are spread on the surface of the soil and pressed. Seeds germinating at 18°C. Seedlings with the first true leaves are replanted into boxes or beds with the same soil texture. Young seedlings are very sensitive for surplus of moisture and sun. Scrubs are divided into small parts, because young plants grow fast. Seedlings could be planted even without roots but need more care. P. auricula, P. x pubescens are propagated by cuttings. Cuttings are planted in hotbeds or beds between May and June. Hotbeds should be protected from direct sun. Cuttings root within 15-20 days. Young plants survive in winter, but should be protected. Plants could be replanted to the final growing place in Spring.

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