Calamagrostis × acutiflora 'Karl Foerster'

feather reed grass

2 litre pot
pot size guide
£8.99 Buy
9cm pot
pot size guide
£4.99 Buy
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    • Position: full sun or partial shade
    • Soil: dry or wet, well-drained soil
    • Rate of growth: fast growing
    • Flowering period: early summer to autumn
    • Hardiness: fully hardy

      A stiff, erect habit is the defining feature of this grass, named after the famous German plantsman who introduced it to the public in the 1950s. Plant it en masse to form a feathery screen, or in small groups to add height and definition to a perennial border. It also looks good planted next to buildings. This is one of the earliest perennial grasses to get going, with shoots appearing in early spring, followed by flowers that are green first, then fade to buff.

    • Garden care: Very low maintenance, it simply needs to be cut down to the ground in February. Don’t be tempted to chop it earlier, as its wheat-coloured stems add drama and strong winter presence to the garden.

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by PowerReviews
CrocusCalamagrostisxacutiflora'Karl Foerster'

(based on 1 review)

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Reviewed by 1 customer

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(4 of 7 customers found this review helpful)


no feathery reeds appeared

By Barney

from Middlesex


  • Hardy


  • Unattractive

Best Uses

  • Garden

Comments about Crocus Calamagrostisxacutiflora'Karl Foerster':

no feather reeds have appeared on this plant this year....why is this?

  • Your Gardening Experience:
  • Experienced

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2 Questions | 2 Answers
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  • Q:

    Is this grass suitable for growing in a container? What maintenance would be required in terms of fertilising, repotting etc?
    Asked on 8/31/2014 by Dahliadarling from Leeds

    1 answer

    • Plant Doctor



      This plant looks so great when planted in big blocks in the border, but it is possible to grow it in a pot filled with John Innes No.2 too. You will need a biggish pot - I would suggest something with a diameter of at least 45cm and a sturdy base, so it does not topple over. As for maintenance, it is pretty easy to care for, just make sure it is well watered in the growing season and cut it back hard when it starts to look really tatty. You can also give it the occasional feed with a good, general-purpose fertiliser such as MiracleGro from spring to midsummer.

      Answered on 9/1/2014 by helen from crocus
  • Q:

    Please can you tell me how far part these should be planted?
    Asked on 4/6/2014 by Naughty Nicky

    1 answer

    • Plant Doctor


      Hello there
      These plants can grow to at least 60cm wide eventually. The planting distances between the plants depends really on the look you would like to create, and how patient you are waiting for them to grow But normally I would plant them 50-60cm apart.

      Answered on 4/7/2014 by Anonymous from crocus
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