Ageratina altissima 'Chocolate'

white snakeroot (syn. Eupatorium)

2 litre pot
pot size guide
£9.99 Buy
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A statuesque plant for larger spaces; happy in a large mixed border in a formal or cottage garden; thrives in a damp wild garden or by the water's edge

Lucy Summers - Greenfingers Guides

1 year guarantee

  • Position: partial shade
  • Soil: tolerates most provided there is adequate moisture
  • Rate of growth: average
  • Flowering period: July to September
  • Hardiness: fully hardy

    Long-lasting, pure white flowerheads appear from July to September above attractive bronzy-chocolate foliage. This lovely clump-forming perennial is easy to grow and manage and the flowers are attractive to bees and butterflies. A versatile plant for a mixed border, where it looks great with ornamental grasses and will extend the season of interest.

  • Garden care: Cut back and compost the stems after flowering.

Knautia macedonica

knautia

Crimson, pincushion-like flowers

£7.99 Buy

Miscanthus sinensis 'Gracillimus'

Chinese silver grass

Statuesque and with a long season of interest

£9.99 Buy

Actaea simplex Atropurpurea Group

bugbane (syn. Cimicifuga)

A late-flowering perennial for shade

£12.99 Buy
 

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1 Question | 1 Answer
Displaying question 1
  • Q:

    Hello,

    I planted an Ageratina altissima a few months ago and it has taken really well - doubling in size over the Summer.

    However, it's now falling over - the main stems don't seem to be strong enough to support its own weight. Is this normal? Should I be supporting it with canes or has it grown too quickly?

    I have one on the other side of my garden which has grown much more slowly and is still upright.

    Thanks
    Asked on 21/8/2016 by pinkshirt from South London

    1 answer

    • Plant Doctor

      A:

      Hello,

      These plants are happiest in partial shade, however if the shade is too dense, the plant will become 'stretched' as it reaches for more sun. This rapid, soft growth could be caused by too much fertiliser, so if it is at all possible you should address these issues.. If all else fails however, you could use some discretely placed bamboo canes to prop it up.

      Answered on 27/9/2016 by Anonymous
Displaying question 1

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