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feather reed grass

Scientific Name: Calamagrostis ×acutiflora

Family: Poaceae

Category: Monocot

Growth:

Duration:

Other Names:

       

Karl Foerster Feather Reed Grass (Calamagrostis x acutiflora 'Karl Foerster')

Calamagrostis x acutiflora 'Karl Foerster', commonly known as Karl Foerster feather reed grass, is a popular ornamental grass prized for its upright habit and versatility in the landscape.

Considerations for Pets

  • The plant has slender, upright foliage.

Taxonomy and Nomenclature

  • Scientific Name: Calamagrostis x acutiflora 'Karl Foerster'
  • Common Names: Feather reed grass, Karl Foerster feather reed grass
  • Genus: Calamagrostis
  • Family: Poaceae (Grass Family)
  • Hybrid Origin: Calamagrostis x acutiflora 'Karl Foerster' is a hybrid cultivar resulting from a cross between C. arundinacea and C. epigejos.
  • Synonyms: Sometimes misspelled as C. 'Karl Forester'. The provided text also refers to Calamagrostis acutifolia 'Karl Foerster' which may be a synonym or a similar plant.

Distribution and Habitat

This cultivar is extensively grown as an ornamental plant throughout the United States and is one of the most popular garden grasses worldwide.

Morphological Characteristics

  • Growth Habit: Upright and clump-forming. It maintains a neat, vertical line due to its strictly upright leaves and flowers.
  • Size: Typically reaches a height of 5 to 6 feet.
  • Foliage: Slender, upright, deep-green foliage.
  • Flowers: Showy flowers bloom early and ripen into tawny seed heads. They are purplish in June/July, fading to gold and then blond through the winter.

Ecological Role

The plant is described as not being invasive, making it a desirable choice for gardeners.

Quirky Facts

  • 'Karl Foerster' was the Perennial Plant of the Year in 2001 and 2008, highlighting its popularity and desirability.
  • The flower heads can be cut and used in dried arrangements.

Further Information

The Royal Horticultural Society (RHS) and Monrovia offer information on Calamagrostis x acutiflora 'Karl Foerster'. Dave's Garden also provides tips and ideas for gardens.