Ausytoji raktažolė – Primula auricula

Ausytoji raktažolė

PLANT NAME
Lithuanian plant nameAusytoji raktažolė
Latin plant namePrimula auricula L.
English plant nameAuricula
TYPE OF PARTERRE
  • Clump, beds (mixborder)
  • Pods
  • Flowerbed, parterres
  • Groups
  • Rockery, retaining walls
  • Cemetery
  • Water bodies and coastal
ASSORTMENTmain
GROWING PLACE CHARACTERISTICS
Soil
  • average wet soils
  • dry soils
Lighting
  • Half heliophobic
Spacing, cmFrom 15 to 20
PLANT HEIGHT AND HABITUS
Height
  • very short (foreground plants) – till 20 cm height
Habitusflower with non-expressive habitus, for background
PLANTS ORNAMENTALITY
Leaf color
  • green
Blossom color
  • yellow, yellow tints
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. Species, which mature seeds are propagated by seeds all species, The easiest way to propagate P. denticulata and P. florindae by seeds. Propagation by seeds is complicated for 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. The substrate could be mixed from peat, sand and compost (proportion 1:1:2). 12 g superphosphate and 6 g chalk could be added into 8 - 10 kg mix substrate. Seeds are small (especially of P. denticulata). They are spread on the surface of the soil and pressed. Seeds germinating at 18°C. 3400 seeds per 1 gram (P. auricular). Seeds stay viable for 1-2 years Seedlings with the first true leaves are replanted into boxes or beds with the same soil texture. Young seedlings are very sensitive to the 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 and 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 rooting 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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