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Double yellow flag | Iris pseudacorus 'Flore Pleno'

    Description

    Double yellow flag (Iris pseudacorus 'Flore Pleno') is a striking marginal pond plant, ideal for adding bold colour to the water’s edge. Its bright, deep lemon-yellow double flowers appear in June and July, creating a dramatic display in full sun or partial shade.

    This medium-growing marginal iris is well suited to planting in shallow water or damp soil around the pond, where its upright foliage adds structure and height. Like other marginal plants, it helps soften pond edges, offers shelter for aquatic wildlife and contributes to a more natural-looking pond environment.

    Iris pseudacorus 'Flore Pleno' is best positioned where its vivid yellow blooms can be appreciated from the garden or patio. As with all iris, the tubers are harmful if eaten, so it is sensible to plant where pets and children are unlikely to disturb them.

    Double yellow flag | Iris pseudacorus 'Flore Pleno'

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      Free delivery over £60*
      Use code: EDENFREE60

      Terms apply

      Striking double lemon-yellow blooms brighten borders and pond margins.

      £14

        • Bold double yellow blooms give a dramatic splash of colour by the pond
        • Ideal for shallow water or damp pond margins to soften hard edges
        • Upright foliage adds height and structure around the water’s edge
        • Provides shelter around the pond for aquatic wildlife

        Striking double lemon-yellow blooms brighten borders and pond margins.

        Description

        Double yellow flag (Iris pseudacorus 'Flore Pleno') is a striking marginal pond plant, ideal for adding bold colour to the water’s edge. Its bright, deep lemon-yellow double flowers appear in June and July, creating a dramatic display in full sun or partial shade.

        This medium-growing marginal iris is well suited to planting in shallow water or damp soil around the pond, where its upright foliage adds structure and height. Like other marginal plants, it helps soften pond edges, offers shelter for aquatic wildlife and contributes to a more natural-looking pond environment.

        Iris pseudacorus 'Flore Pleno' is best positioned where its vivid yellow blooms can be appreciated from the garden or patio. As with all iris, the tubers are harmful if eaten, so it is sensible to plant where pets and children are unlikely to disturb them.

        Product Details
        • Plant Type: Marginals
        • Placement Zone(s): 2, 3
        • Height: 80 cm to 100 cm
        • Planting Depth: Up to 20 cm - Plant in damp soil or shallow water up to about 20 cm deep
        • Flower Colour: Yellow - Deep lemon-yellow double flowers
        • Flowering Months: Flowers in June and July
        Care Instructions

        Double Yellow Flag Iris 'Flore Pleno' Care Instructions:

        This striking marginal plant thrives best in full sun to part shade, making it perfect for brightening up borders, pond edges, or sunny garden beds. During autumn, once the foliage has naturally died back, prune the plant by cutting the stems just above the water surface to encourage healthy growth. If you choose to leave the trimming until spring, be extra careful not to damage the new shoots emerging from the base. With a medium growth rate, regular attention to pruning will help maintain its vibrant, lush appearance season after season.

        Ordering, Shipping, Tracking and Returns
        Ordering & delivery


        Some products are ready for immediate dispatch, while others are sold for a later delivery period so that they can reach you in good condition and at the right point in the growing season.

        The expected delivery period for the product or variant you choose will be shown below the Add to basket button and again in the basket and checkout.

        30 litre plants and some larger items are sent by specialist pallet delivery rather than standard parcel.

        If your order contains products with different delivery timings, it may be split into more than one shipment. Plants or products that are ready for immediate dispatch will normally be sent first, while later-season plants will be sent when they are ready. This helps us send live plants at the appropriate point in the season and in suitable condition to travel.

        For full details, please see our Shipping Policy.

        Delivery costs

        Add your delivery address and postcode during checkout to see the delivery options available for your order.

        Current standard charges for mainland UK include:

        • £5.95 Standard Delivery
        • £49.95 Specialist Pallet Delivery – used for 30 litre plants and certain other larger items and usually delivered within 4-15 working days. Where needed, we or the carrier will contact you to arrange a suitable delivery date.

        Highlands & Islands delivery options are shown at checkout. Current charges are:

        • Royal Mail from £5.95
        • Parcel Force from £24.95
        • Specialist Pallet Delivery from £99.95 to £174.95

        The correct charge for your order and postcode will always be shown before you place your order. For full details, please see our Shipping Policy.

        Tracking your order


        After placing your order, you should normally receive an order confirmation by email.

        We will also send a dispatch confirmation when your order leaves for delivery, together with tracking details where they are available.

        If your order is sent in more than one shipment, you may receive separate delivery updates.

        For full guidance, please see Track My Order.

        Returns & problems on arrival

        Because we sell live aquatic plants and molluscs, some parts of our policy work differently from standard retail.

        Live plants and molluscs are perishable and are not suitable for routine returns once they have been prepared for dispatch.

        If there is a genuine issue on arrival, please contact us within 24 hours using the form on our Contact page, with your order number, photographs, and a short explanation.

        We will always review genuine issues carefully and fairly. Depending on the circumstances, the appropriate remedy may include a replacement, refund, or partial refund where appropriate.

        Please do not send anything back unless we have agreed this with you in writing first.

        For full details, please see our Refunds & Returns Policy.

        Contact & business details

        Edenmere is a trading name of Solilium Ltd, a company registered in England and Wales.
        Company No. 16810551
        Registered office: 128 City Road, London EC1V 2NX, United Kingdom
        If you need help, please use the form on our Contact page.
        The customer services opening hours are Monday to Friday 09.00 – 17.00.
        If the matter is urgent, you may also call us on 01865 537277.

        For full details, please see our Terms of Service and other policy pages.

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          © 2026 Edenmere is the trading name of Solilium Ltd (Company No. 16810551), registered in England & Wales. Registered office: 128 City Road, London EC1V 2NX.

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