highbush blueberry "Duke"

Medium-sized, upright, vigorously growing deciduous shrub, fruit-plant (H 1,5-2,5 m, W 0,7-1 m). Branches upright to slightly open. Leaves simple, ovate (5-8 cm), smooth, light bluish green to dark green, lighter underneath, autumn colour yellow, orange to bright red. Flowers in numerous loose inflorescence, narrowly bell-shaped (up to 1 cm), white, eventually with light pink hue, slightly scented. Flowering period: May-June. Fruits flattened round, large, blue, with grey-blue bloom, juicy, tasty, good for fresh use and processing. Ripening time: June-July, mid early, very high yield. Attracts bumble-bees, butterflies, bees and birds. Grows well in highly to moderatly acidic, humus-rich, peaty, light and always moderately moist soils, in moderately sunny to half-shady sites. disclaimer užitnost
  • Plants for partial shade need a few hours of direct sun per day to grow and blossom properly, thus could suffer harm from direct sun heat or overlong sun exposure. It is important for the plant not to be exposed to afternoon heat and in early afternoon hours, but must be exposed to morning, forenoon and evening sun. Partial shadow position can mean a site that is sunny one part of the day, or a site with sun and shade in patches, as it is the case under broadlived trees or behind a picket fence - wooden boards with spaces in between.


  • This group includes plants that cannot tolerate limestone (chalk) and need acidic soils to grow normally, this is soil, of which pH must lower tahn 6. According to pH value (acidity and alkalinity), soil can be either acidic, neutral or alkaline, with intermediate levels. Fertile, quality garden soils of most gardens and parks are  slightly acidic to neutral (pH 6-7) and suit most of plants. If soil contains a lot of calcium (limy soils), it is alkaline soil. Acidic soils contain much less calcium, they can be richer in humus. Some acidic soils are washed out and poor in plant nutrients. Plants like, for example most of the rhododendrons, heather, camelias and bluberries, grow normally only in distinctively acidic soils, so such soil must be attained when planting. Most of other plants do grow well in slightly acidic soils, but grow as well also in neutral soils with a bit higher calcium content.



  • Moist soil usually contain morefine clay parts and less sand, more humus and organic materials, they are somewhat heavier, but not hard; water does not run away quickly but stays among soil particles and is long available to plants. There is no stagnant water, soil is airy enough. Drought occurs rarely on such positions. Plants are given more or less permanent, moderate moisture.



  • Leaves or needles of many deciduos plants change colour in autumn before falling mostly to yellow, orange and red shades. Distinctive autumn red or similar colouration may also appear in some evergreen plants, which leaves/needels do not fall off in autumn. Autumn coloration depends on general condition of a plant, maintanance, weather and site. Usually leaves colour more intensely if dry autumn and if differences between day and night temperatures are greater, as well as on dry, sandy soils with less nitrogen. Among grown ornamental plants there are numerous varieties with especially intense or diverse autumn colour than by the basic species.
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Vaccinium corymbosum "Duke" |P19

SKU 00009468
Produced in P19
On stock
13.40 €


Tuesday, 13 March 2018
Tuesday, 13 March 2018
Vse gojene vrste in sorte tega rodu potrebujejo rahla, stalno vlažna ali celo mokra, humozna do delno peščena, kisla tla; težka ilovnata tla jim ne ustrezajo. Primerna so polsenčna rastišča. Ameriške borovnice Med borovnicami najpogosteje gojimo... next...
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