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Glicina americana alba - Wisteria macrostachya 'Clara Mack' (flori parfumate)
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  • Glicina americana alba - Wisteria macrostachya 'Clara Mack' (flori parfumate)
  • Glicina americana alba - Wisteria macrostachya 'Clara Mack' (flori parfumate)
  • Wisteria macrostachya 'Clara Mack'
Glicina americana alba - Wisteria macrostachya 'Clara Mack' (flori parfumate)

Glicina americana alba - Wisteria macrostachya 'Clara Mack' (flori parfumate)

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Wisteria macrostachya 'Clara Mack' is a rare and spectacular variety of American wisteria , prized for its fragrant white flowers and elegant appearance. This vigorous climber, native to North America, is ideal for decorating pergolas, arches or fences, providing a special floral display in late spring and early summer.

Flower appearance

The flowers are grouped in pendulous clusters (racemes), with a length of 15-30 cm , shorter than those of other wisteria species, but extremely attractive. Each cluster is made up of small, white, pea-shaped flowers, which open gradually. Unlike Japanese or Chinese wisteria, which have predominantly purple or blue flowers, 'Clara Mack' stands out for its pure white color , sometimes with slight shades of cream or pale green. These flowers exude a sweet and delicate fragrance , attracting bees, butterflies and hummingbirds. The main flowering period is late spring to early summer (May-June) , and under certain conditions it can provide a secondary, weaker flowering towards the end of summer.

Growth characteristics

  • Height : Grows up to 4-8 meters , being more compact than other wisterias, making it suitable for smaller gardens or urban spaces.
  • Foliage : The leaves are compound, with 9-15 bright green leaflets , which turn golden yellow in fall, adding additional visual interest.
  • Stems : The woody stems twist clockwise and require solid support to support the weight of the plant.

Growing conditions

  • Exposure : Prefers full sun for abundant flowering, but also tolerates semi-shade.
  • Soil : Needs well-drained, fertile soils with neutral or slightly acidic pH; does not tolerate excessively wet soils.
  • Watering : Requires regular watering in the first few years to establish roots, but becomes moderately drought tolerant once mature.
  • Hardiness : It is very hardy, withstanding temperatures down to -30°C (USDA zones 4-9), making it ideal for colder climates.

Care

  • Pruning : To control growth and stimulate flowering, regular pruning is recommended. After the main flowering, new shoots are reduced to 5-6 buds , and in winter shortened to 2-3 buds .
  • Fertilization : A phosphorus-rich fertilizer applied in spring promotes flowering; excess nitrogen should be avoided as it stimulates leaf growth to the detriment of flowers.

Origin

Wisteria macrostachya 'Clara Mack' is a selected variety of the species Wisteria macrostachya , native to the southeastern United States , particularly the wetlands of Louisiana, Arkansas, and Mississippi. The species was first described in 1824 by botanist Thomas Nuttall, who observed it growing in the wild. Unlike Asian wisterias (such as Wisteria sinensis or Wisteria floribunda ), which originate from Asia, Wisteria macrostachya is native to North America, which gives it increased cold tolerance and better adaptability to colder climates.

features

Unlike other wisterias, 'Clara Mack' tends to bloom at a younger age, providing young gardens with a quick floral display. Its autumn foliage and intense flower fragrance also add aesthetic and sensory value throughout the season.

In the cold season, plants enter a dormant period and are shortened.
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