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A named garden cultivar in the iris family, Iris 'Langport Duchess' is a variety within the genus Iris that produces its flowers in late spring to mid-summer. It is a cultivated selection selected for garden use under the Iridaceae. Expect bloom activity between May and July. Planting and maintenance follow typical iris practices rather than species-specific requirements.

About the genus

Iris takes its name from the Greek goddess of the rainbow, and for once the naming feels entirely earned. I can't think of another genus that covers so much ground — inky purples, burnt apricots, clean whites, blues that seem lit from inside — or so many situations. There are bearded irises that want their rhizomes baked in full sun, Siberian types happy in ordinary border soil, and species that will sit contentedly at the edge of a pond. What they share is the flower: three petals standing up, three falling away, built with a kind of architectural confidence most plants never attempt. Even out of bloom the foliage earns its place — those upright fans of blue-green leaves hold a border together for months. I grow them for the fortnight in May and June when nothing else in the garden can compete, and I've made my peace with that. Some plants are for the long haul. An iris is an event.

Written by Henry

In the garden

Iris 'Langport Duchess' is a cultivated selection of the genus Iris within the family Iridaceae. As a named garden cultivar it is grown for its seasonal flowering display; blooms are produced from May to July. Where a cultivar’s precise requirements vary, refer to plant labels and supplier notes, but general iris handling applies. Position the plant where soil drains freely and where it receives a period of direct light each day; many garden irises respond poorly to prolonged waterlogging. Incorporate a little organic matter when preparing the planting spot if the soil is very impoverished, and avoid deep planting that can suppress flowering in many iris types. Mulch lightly in autumn to suppress weeds but keep mulch away from crowns to reduce rot risk. Established clumps benefit from attention when flowering declines: lift and divide as needed to refresh vigour, and tidy spent flower stems to direct energy back into the plant. Use sharp secateurs for clean cuts and remove any obvious dead or diseased foliage. Expect the main season of interest to be from May to July, when the plant provides its peak floral display.

More in the Iris genus

Browse all Iris →
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