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'Sulphureux' is a rhizomatous perennial to around 80cm tall with fans of sword-shaped, greyish-green foliage. Flowers borne on well-branched stems from late spring into early summer comprise pale yellow-white standards, creamy falls striped with yellow and brown markings and edged with white and a small orange beard
I. laevigata is a rhizomatous perennial to 70cm in height, with erect, sword-shaped leaves and rich purple flowers 8-10cm in width, each fall with a narrow white flash at the base
I. hoogiana is a rhizomatous perennial with erect mid-green foliage up to 50cm long. In late spring or early summer it produces mid-blue, fragrant flowers
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Iris like to be moist in the spring when they are growing and dry during the summer when they are dormant...These iris cultivars will be available to buy from Jacques Amand in autumn 2016...Iris photographed at the RHS London Early Spring Plant Fair 2016...
Iris sawfly has greyish-brown larva that reach 25 mm in length and eat the foliage of flag iris ( Iris pseudacorus ) and other waterside irises, including Iris spuria, I
Iris diseases can be caused by fungi, bacteria or viruses...Check iris bulbs before planting and discard any with softening, decay or black inky patches on the scales...These include Bearded iris mosaic virus, Iris mild mosaic virus and Iris severe mosaic virus...
plants/articles/misc/try-a-different-iris Read about trying different irises in your garden from Anne Blanco White, RHS Iris committee member
Iris graminea is one to buy, or beg, in flower to make sure that you have a well-scented form...Irises for dry soil (bearded iris
2017 Exciting new iris from America's top breeders make it to Britain...Iris sibirica 'Penny Whistle', 'Charming Billy' and 'Unbuttoned Zippers...You can order Iris ?Charming Billy? , ?Penny Whistle? and ?Unbuttoned Zippers? from Hayloft Plants
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.