Gunnera Manicata Seeds

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With little doubt, this must be the most majestic herbaceous plant hardy in the British Isles - like a giant Rhubarb, the leaves can grow to over 6ft across and be supported on stout, prickly stalks up to 8ft long. Although the individual reddish flowers are minute, they are borne in their countless thousands in club-shaped spikes, which can themselves be 6ft or so tall. They are particularly happy in moist ground. Labour-saving - half a dozen of these in your garden and you wouldn't have to lift a finger for most of the year! Hardy perennial throughout the British Isles.

Pretty Wild Seeds are registered with the Department for Environment, Food & Rural Affairs (DEFRA) under number 7529, so you can have confidence in both our products and advice. Although our products are listed in weights and acres, we can supply in additional quantities upon enquiry so if you need a larger supply, please don't hesitate to give us a call.

  • 200 seeds for £2.35
  • Quantities from: £2.35

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    The Gunnera Manicata Seeds is shown in Flower Seeds > Perennial Seeds.

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    We happily accept returns within 14 days from date of delivery. All returns must be received in the same condition and packaging we sent them. Postage charges will not be refunded on unwanted products.

    You are solely responsible for ensuring the goods are returned to us. We will not be liable for returns that are lost in the post or lost for any other reason. If a product arrives damaged we will advise the customer how to return the item with all return costs covered by us.  Replacements & refunds will be dispatched / issued on receipt of the returned items only.

    Germination; Sow seed as soon as possible. Fill a 20cm pot with moisture retentive medium. Surface sow onto medium, sow thinly. Try not to touch the seeds with bare hands. Firm the seed onto the soil. Mist with water. Cover the pot with a sheet of plastic to offer total darkness. Ideal temp. 20-25⁰C. Germination takes 15-60 days approx. Do not allow to dry out. Once germinated admit diffuse light and air. Leave seedlings in the pot for their 1st year. Feed and water during this time. Transplant to a larger pot in the 2nd year or acclimatise and plant out after danger of frost has passed.

    Growing; Site carefully due to plants eventual size. Prefers a permanently moist, humus-rich soil in full or partial sun. Prefers a sheltered position away from cold winds. Protect crowns from cold with a winter mulch.

    Cultivation; Cut back after flowering in October to 30cm above ground. Cover crown with a winter mulch, try to prevent crown from getting wet if possible. Remove mulch in spring after danger of frost has passed. Propagate by fresh seed or by cuttings of leafy basal buds in spring.