Plants by mail order since 1984 - over 4,100 plants online today!
Burncoose Nurseries - part of the Caerhays Estate
Nursery & Gardens open: Mon - Sat 08.30 - 16.30 & Sun 10:00 - 16:00
Pop up café: Open Thursday-Saturday 10.30 - 14.30 & Sunday 11.00 - 15.00( weather permitting )
Dear Customers. Please be advised that Thursday 18th of December is the last order date for guaranteed delivery before Christmas. Our hard working despatch teams finish on Friday.

The Nursery will be open as normal during the Christmas period, except Bank Holidays, and will be closing at 1.30pm on Christmas Eve and New Year's Eve.

Thank you to all our customers old and new for their valued support this year.
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    PERSICARIA amplexicaulis 'Blackfield'
    PERSICARIA amplexicaulis 'Blackfield'
    © Burncoose Nurseries, all pictures for illustrative purposes only.
    <
    PERSICARIA amplexicaulis 'Blackfield' PERSICARIA amplexicaulis 'Blackfield' PERSICARIA amplexicaulis 'Blackfield' PERSICARIA amplexicaulis 'Blackfield' ARUNDO donax var. versicolor and PERSICARIA amplexicaulis 'Blackfield' © Burncoose Nurseries, all pictures for illustrative purposes only. COTINUS coggygria 'Rubrifolius', ERYNGIUM giganteum 'Miss Willmott's Ghost' and PERSICARIA amplexicaulis 'Blackfield' © Burncoose Nurseries, all pictures for illustrative purposes only. EUPHORBIA x pasteurii and PERSICARIA © Burncoose Nurseries, all pictures for illustrative purposes only. Hemerocallis, Persicaria amplexicaulis and Stachys lanata ‘Silver Carpet’ © Burncoose Nurseries, all pictures for illustrative purposes only.
    >

    PERSICARIA amplexicaulis 'Blackfield'

    Commonly known as Knotweed, Polygonum

    Slender flowers in deep red-black. A smouldering beauty
     
    Full Plant Details - Sun/Soil & other attributes
    • Flowering
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      May
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      Jun
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      Jul
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      Aug
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      Sep
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      Oct
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      Nov
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    • Pests & Diseases
      None
    • Place of origin
      Garden origin
    • Resistant to honey fungus
      These plants have little or few problems with honey fungus.
    • Semi-evergreen
      Keeps some of its foliage all year, and will drop some leaves as well.
      Ovate, lance-shaped, pointed, mid-green leaves to 25cm (10in) long, slightly puckered.
    • Red
      Deep red black
    • Bell/Lantern
      Narrowly bell-shaped 5mm (¼in) long
    • Spikes
      Long-stalked narrow spikes to 10cm (4in) long
    • Border
      Suitable for a mixed or herbaceous border
    • Fully hardy
    • Height
      1.2m (4ft)
    • Spread
      1.2m (4ft)
    • Herbaceous
      Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.
      Robust, clump-forming perennial
    • Hardy - cold winter
      Hardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F)
    • Summer Seasonal Interest
    • Tolerates all
      Any moist soil.
    • Full sun
    • Partial shade
    • Bee friendly
    • Rabbit Resistant
    • Mature Size
      1.2m (4ft)
      		 Herbaceous - guide for size not form Watering Can
        1.2m (4ft)
      		  
    View Detailed Plant Description

     

    View Planting Tips and Care Advice
    Herbaceous Plants - Video Collection
    Persicaria - Growing Guide
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    PERSICARIA microcephala 'Red Dragon'

    PERSICARIA microcephala 'Red Dragon'

    Bistort
    Available from £12.50
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    PERSICARIA affinis 'Darjeeling Red'

    PERSICARIA affinis 'Darjeeling Red'

    (Polygonum) - Knotweed
    Available from £12.50
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    PERSICARIA alpina

    PERSICARIA alpina

    Available from £12.50
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    View Planting Combinations
    ARUNDO donax var. versicolor and PERSICARIA amplexicaulis 'Blackfield'
    COTINUS coggygria 'Rubrifolius', ERYNGIUM giganteum 'Miss Willmott's Ghost' and PERSICARIA amplexicaulis 'Blackfield'
    EUPHORBIA x pasteurii and PERSICARIA
    Hemerocallis, Persicaria amplexicaulis and Stachys lanata ‘Silver Carpet’
    Monarda ‘Prairie Night’, Eryngium ‘Picos Blue’, Argyranthemum ‘Chelsea Girl’, Blue Phlox and Persicaria
    PERSICARIA amplexicaulis 'Blackfield' and PHLOX paniculata 'Rijnstroom'
    PERSICARIA amplexicaulis 'Blackfield' and ROSA POLYANTHA & FLORIBUNDA
    Violet Phlox, Miscanthus sinensis, Persicaria ampexicaulis, Buddleia davidii and Persicaria alpina
    Violet Phlox, Miscanthus sinensis, Persicaria ampexicaulis, Buddleia davidii, Persicaria alpina, Sedum ‘Brilliant’ and Salvia ‘Embers Wish’

    Useful extras...

    Vermin & Pest Control
    Slug Pellets
    Slug killer blue mini pellets are easy to use and give effective control of slugs and snails. Ideal in garden, conservatory or greenhouse.
    800g
    £6.50
    Fertilisers & Feeds - Vitax
    Q4 Pelleted Fertiliser
    A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
    0.9 kg
    £6.00
    Unavailable
    2.5 kg
    £13.00
    Unavailable
    4.5 kg
    £25.00
    Fertilisers & Feeds - Empathy
    All-purpose Seaweed Stimulant
    All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants. Perfect used in conjunction with Rootgrow™.
    1 ltr
    £8.50
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