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Summary
Physical Characteristics
Iris decora is a PERENNIAL growing to 0.3 m (1ft). It is in flower in July. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. The plant is self-fertile.
Suitable for: light (sandy) and medium (loamy) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
I. nepalensis. D.Don.
Plant Habitats
Cultivated Beds;
Edible Uses
References More on Edible Uses
Medicinal Uses
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Diuretic Purgative
The root is aperient, deobstruent, diuretic and purgative[61, 243]. It is useful in the treatment of bilious obstructions and is also applied externally to small sores and pimples[243].
References More on Medicinal Uses
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Other Uses
References More on Other Uses
Cultivation details
Prefers a well-drained rich soil in a sunny position[1]. Plants are best lifted in October, stores in dry sand in a cool frost-free place over the winter and planted out in March[1]. Members of this genus are rarely if ever troubled by browsing deer or rabbits[233]. There has been some confusion over the name of this species. Iris decora Wall. should apply to a beardless species with the synonym of Iris nepalensis D.Don., whilst Iris nepalensis Wall. applies to a bearded species with the synonym Iris deflexa Knowle.&Wetc.
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
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Plant Propagation
Seed - best sown as soon as it is ripe in a cold frame. It does not require cold stratification. Stored seed should be sown as early in the year as possible in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in the greenhouse or cold frame for their first year. Plant out into their permanent positions in late spring or early summer. Division, best done after flowering in late summer. Very easy, larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.
Other Names
If available other names are mentioned here
Native Range
TEMPERATE ASIA: China (Sichuan Sheng, Xizang Zizhiqu, Yunnan Sheng) TROPICAL ASIA: Bhutan, India (Sikkim, Himachal Pradesh, Jammu and Kashmir, Meghalaya, Punjab, Uttar Pradesh), Nepal, Pakistan
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status :
| Related Plants
|
| Latin Name | Common Name | Habit | Height | Hardiness | Growth | Soil | Shade | Moisture | Edible | Medicinal | Other |
| Albizia lebbeck | Siris Tree, Woman's Tongue, East Indian Walnut | Tree | 15.0 |
10-11
| F | LMH | N | M | 1 | 2 | 4 |
| Albizia lucidior | Potka siris tree | Tree | 15.0 |
10-12
| F | LMH | SN | M | 0 | 0 | 3 |
| Albizia procera | White Siris, Tall Albizia, Forest Siris | Tree | 25.0 |
10-12
| F | LMH | N | M | 1 | 2 | 4 |
| Bobartia indica | Rush Iris | Perennial | 0.6 |
7-10
| S | L | N | DM | 0 | 0 | 1 |
| Gynandriris sisyrinchium | Spanish Nut | Perennial | 0.2 |
7-10
| | MH | SN | DM | 1 | 0 | |
| Iris cristata | Crested Iris, Dwarf crested iris | Perennial | 0.2 |
5-9
| M | LM | SN | M | 1 | 1 | |
| Iris douglasiana | Mountain Iris, Douglas iris | Perennial | 0.3 |
6-9
| | LM | SN | DMWe | 0 | 0 | 1 |
| Iris ensata | Japanese Water Iris | Perennial | 0.6 |
5-8
| M | LM | N | MWe | 1 | 1 | 2 |
| Iris filifolia | | Bulb | 0.5 |
-
| | LM | N | DM | 1 | 0 | |
| Iris foetidissima | Stinking Gladwin, Stinking iris, Gladwin Iris | Perennial | 1.0 |
7-10
| M | LMH | FSN | DMWe | 0 | 2 | 3 |
| Iris germanica | Purple Flag, German iris, Orris-root, Tall Bearded German Iris, Bearded Iris | Perennial | 1.0 |
4-10
| M | LM | SN | DM | 1 | 3 | 2 |
| Iris germanica florentina | Orris, Orris-root | Perennial | 0.9 |
5-10
| M | LM | SN | M | 1 | 3 | 3 |
| Iris japonica | | Perennial | 0.6 |
-
| | LM | SN | DM | 1 | 2 | 3 |
| Iris kemaonensis | | Perennial | 0.5 |
-
| | LM | SN | DM | 0 | 2 | |
| Iris macrosiphon | Bowltube Iris | Perennial | 0.2 |
-
| | LM | SN | M | 0 | 1 | 1 |
| Iris missouriensis | Rocky Mountain Iris | Perennial | 0.8 |
0-0
| | LM | SN | MWe | 1 | 2 | 1 |
| Iris pallida | Dalmation Iris, Sweet iris, Fragrant Iris, Zebra Iris | Perennial | 1.0 |
4-10
| M | LM | SN | DM | 2 | 1 | 3 |
| Iris pseudacorus | Yellow Flag, Paleyellow iris | Perennial | 1.5 |
5-8
| M | LM | SN | MWeWa | 1 | 2 | 2 |
| Iris purdyi | Purdy's Iris | Perennial | 0.4 |
-
| | LM | SN | DM | 0 | 0 | 1 |
| Iris sanguinea | Blood iris | Perennial | 0.8 |
5-9
| | LM | SN | MWe | 0 | 1 | 1 |
| Iris setosa | Beachhead Iris, Canada beachhead iris, Wild flag | Perennial | 0.6 |
4-8
| M | LM | SN | MWe | 1 | 1 | 1 |
| Iris sibirica | Siberian Iris | Perennial | 0.6 |
4-9
| F | LM | SN | MWe | 1 | 1 | 1 |
| Iris tectorum | Roof Iris, Wall iris, Japanese Roof, White Root Iris | Perennial | 0.3 |
5-9
| M | LM | SN | DM | 1 | 0 | |
| Iris tenax | Tough-Leaf Iris, Klamath iris | Perennial | 0.3 |
0-0
| | LM | SN | DM | 0 | 1 | 2 |
| Iris versicolor | Blue Flag, Harlequin blueflag | Perennial | 0.6 |
4-8
| | LM | SN | MWe | 0 | 3 | 2 |
| Solanum tuberosum | Potato, Irish potato | Perennial | 1.0 |
7-10
| | LMH | N | M | 5 | 2 | 3 |
| Tagetes filifolia | Irish Lace | Annual | 0.4 |
8-11
| | LMH | N | DM | 1 | 0 | 2 |
|
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
Wall.
Botanical References
51200266
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