Iris japonica

Uses

Toxic parts

Many plants in this genus are thought to be poisonous if ingested, so caution is advised^[1]. The roots are especially likely to be toxic^[2]. Plants can cause skin irritations and allergies in some people^[2].

Edible uses

Notes

Root - the source of an edible starch^[3]^[4]^[5]. Some caution is advised, see the notes above on toxicity.

Root

Unknown use

Material uses

Plants can be grown for ground cover when planted about 45cm apart each way^[6].

There are no material uses listed for Iris japonica.

Medicinal uses(Warning!)

The rhizome is used in the treatment of injuries^[7]. A decoction of the plant is used in the treatment of bronchitis, internal injuries, rheumatism and swellings^[7].

Unknown part

Miscellany

Ecology

Ecosystem niche/layer

Soil surface

Ecological Functions

Ground cover

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - best sown as soon as it is ripe in a cold frame. 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 July/August. 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.

Practical Plants is currently lacking information on propagation instructions of Iris japonica. Help us fill in the blanks! Edit this page to add your knowledge.

Cultivation

Prefers a gritty well-drained soil with plenty of moisture in summer and shelter from early morning sun^[8]^[9]. Prefers a lime-free soil but succeeds in most good soils^[10]^[11]. Succeeds in full sun or partial shade^[10], but plants flower better in a hot sunny position^[12]. Established plants are drought tolerant^[12].

Cultivated for its edible root in Japan^[3]. A number of named varieties have been selected for their ornamental value^[13]. It is best to lift the plant in October, store in sand in a cool frost-free place over winter and plant out in March^[8]. Plants have creeping aerial rhizomes that root at intervals^[13]. The flowers are susceptible to damage by late frosts, the plants failing to flower after an exceptionally cold winter^[13].

Members of this genus are rarely if ever troubled by browsing deer or rabbits^[14].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Iris japonica. Do you know of an interaction that should be listed here? edit this page to add it.

Polycultures & Guilds

There are no polycultures listed which include Iris japonica.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

References

? Frohne. D. and Pf?nder. J. A Colour Atlas of Poisonous Plants. Wolfe ISBN 0723408394 (1984-00-00)
? ^2.0^2.1 Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)
? ^3.0^3.1^3.2 Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications ISBN 0-486-20459-6 (1972-00-00)
? ^4.0^4.1 Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing (1976-00-00)
? ^5.0^5.1 Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books ISBN 3874292169 (1984-00-00)
? ^6.0^6.1 Thomas. G. S. Plants for Ground Cover J. M. Dent & Sons ISBN 0-460-12609-1 (1990-00-00)
? ^7.0^7.1^7.2 Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. ISBN 0-917256-20-4 (1985-00-00)
? ^8.0^8.1 F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
? Grey. C. H. Hardy Bulbs. Williams & Norgate. (1938-00-00)
? ^10.0^10.1 Innes. C. The World of Iridaceae ()
? ^11.0^11.1 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
? ^12.0^12.1 Chatto. B. The Dry Garden. Dent ISBN 0460045512 (1982-00-00)
? ^13.0^13.1^13.2 Phillips. R. & Rix. M. Perennials Volumes 1 and 2. Pan Books ISBN 0-330-30936-9 (1991-00-00)
? Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. ISBN 0 460 86048 8 (1990-00-00)
? Ohwi. G. Flora of Japan. (English translation) Smithsonian Institution (1965-00-00)

"image:Iris japonica1 flower.jpg|248px" cannot be used as a page name in this wiki.

[PFAFimport-65-1] ? Frohne. D. and Pf?nder. J. A Colour Atlas of Poisonous Plants. Wolfe ISBN 0723408394 (1984-00-00)

[PFAFimport-238-2] ? ^2.0^2.1 Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)

[PFAFimport-2-3] ? ^3.0^3.1^3.2 Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications ISBN 0-486-20459-6 (1972-00-00)

[PFAFimport-105-4] ? ^4.0^4.1 Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing (1976-00-00)

[PFAFimport-177-5] ? ^5.0^5.1 Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books ISBN 3874292169 (1984-00-00)

[PFAFimport-208-6] ? ^6.0^6.1 Thomas. G. S. Plants for Ground Cover J. M. Dent & Sons ISBN 0-460-12609-1 (1990-00-00)

[PFAFimport-218-7] ? ^7.0^7.1^7.2 Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. ISBN 0-917256-20-4 (1985-00-00)

[PFAFimport-1-8] ? ^8.0^8.1 F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)

[PFAFimport-42-9] ? Grey. C. H. Hardy Bulbs. Williams & Norgate. (1938-00-00)

[PFAFimport-79-10] ? ^10.0^10.1 Innes. C. The World of Iridaceae ()

[PFAFimport-200-11] ? ^11.0^11.1 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)

[PFAFimport-190-12] ? ^12.0^12.1 Chatto. B. The Dry Garden. Dent ISBN 0460045512 (1982-00-00)

[PFAFimport-187-13] ? ^13.0^13.1^13.2 Phillips. R. & Rix. M. Perennials Volumes 1 and 2. Pan Books ISBN 0-330-30936-9 (1991-00-00)

[PFAFimport-233-14] ? Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. ISBN 0 460 86048 8 (1990-00-00)

[PFAFimport-58-15] ? Ohwi. G. Flora of Japan. (English translation) Smithsonian Institution (1965-00-00)

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Article is incomplete	Yes +
Article requires citations	No +
Article requires cleanup	Yes +
Belongs to family	Iridaceae +
Belongs to genus	Iris +
Functions as	Ground cover +
Has binomial name	Iris japonica +
Has drought tolerance	Tolerant +
Has edible part	Root +
Has edible use	Unknown use +
Has environmental tolerance	Drought +
Has fertility type	Self fertile + and Insects +
Has flowers of type	Hermaphrodite +
Has image	Iris japonica1 flower.jpg +
Has lifecycle type	Perennial +
Has mature height	0.6 +
Has mature width	1 +
Has medicinal part	Unknown part +
Has medicinal use	Miscellany +
Has primary image	Iris japonica1 flower.jpg +
Has search name	iris japonica +
Has shade tolerance	Light shade +
Has soil ph preference	Acid +, Neutral + and Alkaline +
Has soil texture preference	Sandy + and Loamy +
Has soil water retention preference	Well drained +
Has sun preference	Full sun +
Has taxonomic rank	Species +
Has taxonomy name	Iris japonica +
Has water requirements	moderate +
Inhabits ecosystem niche	Soil surface +
Is deciduous or evergreen	Evergreen +
Is taxonomy type	Species +
PFAF cultivation notes migrated	No +
PFAF edible use notes migrated	No +
PFAF material use notes migrated	No +
PFAF medicinal use notes migrated	No +
PFAF propagation notes migrated	No +
PFAF toxicity notes migrated	No +
Tolerates nutritionally poor soil	No +
Uses mature size measurement unit	Meters +
Has subobjectThis property is a special property in this wiki.	Iris japonica + and Iris japonica +