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Burncoose Nurseries - part of the Caerhays Estate
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  • PETASITES japonicus
    PETASITES japonicus
    © Burncoose Nurseries, all pictures for illustrative purposes only.
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    PETASITES japonicus  PETASITES japonicus  PETASITES japonicus  PETASITES japonicus  EUPHORBIA amygdaloides var robbiae and PETASITES japonicus
© Burncoose Nurseries, all pictures for illustrative purposes only. OLEARIA solandri 'Aurea' and PETASITES japonicus
© Burncoose Nurseries, all pictures for illustrative purposes only. PETASITES japonicus and SALVIA greggii
© Burncoose Nurseries, all pictures for illustrative purposes only.
    >

    PETASITES japonicus

    Commonly known as Giant butterbur

    Perennial rhizomatous plant which prefers damp conditions. Dense clusters of yellowish-white flowerheads in FEB-MAR followed by large kidney-shaped leaves growing up to 3 feet high on stalks
    plant size comparison icon
    1.5 to 2 Litre   - Click to view photo - Early in the year, typically January til end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch
    Delivery Information
    Available Early Spring 2026
    individually £14.50 each , 3+ £13.00 each 
    Available Early Spring 2026 - Spring according to the Met office is defined as March 1st - May 31st. Therefore early spring is early March to mid-April. This is not a guaranteed date but an estimate and subject to availability.
     
    Full Plant Details - Sun/Soil & other attributes
    • Flowering
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      Jan
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      Feb
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      Mar
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      Apr
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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
      local_florist
      Dec
    • Good to know
      May become invasive
    • Pests & Diseases
      None
    • Place of origin
      China, Korea, Japan.
    • White
      Yellowish white
    • Bog garden
    • Fully hardy
    • Height
      1-1.2m (3-4ft)
    • Spread
      3-5m (10-16ft)
    • Bulb/Corm or rhizomatous perennial
      Rhizomatous perennial with kidney-shaped, irregularly toothed basal leaves to 80cm (32in) across on stalks to 1m (39in) long. Produces dense clusters of flowerheads to 1.5cm (½in) across, with oblong bracts below, before the leaves
    • Herbaceous
      Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.
    • Very hardy
      Hardy in the severest continental climates including exposed upland locations in the UK. Plant can withstand temperatures < -20 (-4°F)
    • Spring Seasonal Interest
    • Wet or boggy soil
      Humus-rich, permanently moist, not stagnant.
    • Full shade
    • Partial shade
    • Rabbit Resistant
    • Mature Size
      1-1.2m (3-4ft)
      bulb/corm - guide for size not form Watering Can
        3-5m (10-16ft)
       
    View Planting Tips and Care Advice
    Petasites - Growing Guide
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    Useful extras...

    Fertilisers & Feeds - Empathy
    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
    Vermin & Pest Control
    This is a non-biological non-chemical plant insecticide and mildewcide. Works against the physical motion of the insect. Perfect for all plants and edible crops.
    500 ml
    £8.00
    Fertilisers & Feeds - Vitax
    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
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