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Special Offers

24 pansy plug plants ONLY £3.99 with any order

5 Iris rhizomes only £3.99 with orders over £25

25 daffodil bulbs only £4.99 with orders over £45

Iris louisiana 'Ann Chowning' (Marginal Aquatic)

Just £24.99

Hardy Perennial
What is Hardy Perennial?
A plant that lives for more than two years.
Capable of withstanding outdoor winter temperatures down to -15C.
1 x 3 litre potted iris plant £24.99 Despatch: by end of September 2018
1 x 1 litre potted iris plant £14.99 Out of Stock
3 x 1 litre potted iris plants £29.99 Out of Stock
Please note: This product cannot be delivered outside the United Kingdom.
Description How to Grow More Info Delivery
The sumptuous blooms of Iris louisiana 'Ann Chowning' are unmissable! Large velvety red petals with a contrasting splash of gold are borne on stiff vertical stems from May to July. This showy, moisture-loving Iris makes a lovely choice for planting at the edge of ornamental ponds where the upright, strap-like foliage adds a strong vertical element to your planting scheme. These striking hardy perennials make excellent cut flowers so it’s worth planting a few extra plants for summer bouquets. Height: 90cm (36"). Spread: 30cm (12"). Planting depth: Zones 1, 2 & 3 to 20cm (8") below water level.

Cottage Gardens, Water Garden


Sun or semi shade

Up to 90cm (35.4in)

Up to 30cm (11.8in)

Easy for all

Easy for all

Thompson & Morgan strives to ensure that all its plants are delivered to you in the perfect condition for planting. Sadly, the time it takes to deliver to certain locations in the UK means that we can't guarantee this, so regretfully we are unable to ship live plants to the following areas: GY, HS, IV41-IV49, IV51, IV55-56, KW15-KW17, PA34, PA41-48, PA60-PA78, PA80, PH40-PH44, TR21-TR25, ZE1-ZE3.

1 x 3 litre potted iris plant (T78207)
1 x 1 litre potted iris plant (T78205)
3 x 1 litre potted iris plants (T78206)

Flowering Months
When grown in damp borders, Iris louisiana require reliably moist soil. Water if necessary during dry periods to prevent the soil from drying out. Overcrowded clumps of Iris plants can be divided in autumn after flowering. Mulch around the base of Iris louisiana in spring to help retain moisture at their roots. Iris that are grown in ponds may be cut back to just above the water surface in autumn.
Iris louisiana plants thrive in damp, acid or neutral soil in a sunny or semi-shaded position. These moisture loving Iris require a rich, fertile soil which has had plenty of well rotted organic matter added into the soil prior to planting. Grow Iris louisiana in moist, boggy soils or submerged in the shallow margins of ponds with the crown to a maximum depth of up to 20cm (8") below water level. Choose a position in sun or semi shade.


Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £1.95.

Orders which include any other products will incur a delivery charge of £4.95.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.90 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

Satisfaction Guaranteed

For your complete peace of mind, our Home and Garden products may be returned to us within 30 days of purchase for a refund of the purchase price. Items must be returned unused, at your cost and in mint condition. All items carry a manufacturer's 12 month defects warranty.