Plantae > Tracheophyta > Magnoliopsida > Malpighiales > Violaceae > Viola > Viola japonica

Viola japonica (sweet violet)

Synonyms: Viola japonica f. variegata; Viola japonica var. variegata; Viola kapsanensis; Viola kapsanensis var. albiflora; Viola meta-japonica; Viola odorata


Height [2]  3.9 inches (0.1 m)
Width [2]  18 inches (0.45 m)
Allergen Potential [1]  Low
Light Preference [3]  Mixed Sun/Shade
Soil Acidity [3]  Neutral
Soil Fertility [3]  Rich
Soil Moisture [3]  Moist
Edible [2]  May be edible. See the Plants For A Future link below for details.
Flower Type [2]  Hermaphrodite
Leaf Type [2]  Evergreen
Lifespan [2]  Perennial
Pollinators [2]  Bees
Scent [2]  The flowers have a delicate sweet scent.
Structure [4]  Herb
Usage [2]  An essential oil from the flowers and leaves is used in perfumery; 1000kg of leaves produces about 300 - 400g absolute; The flowers are used to flavour breath fresheners; A pigment extracted from the flowers is used as a litmus to test for acids and alkalines; Plants can be grown as a ground cover when spaced about 30cm apart each way; They make an effective weed-excluding cover;
View Plants For A Future Record : Viola japonica

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Bath and Bradford-on-Avon Bats 265 England, United Kingdom  
Berwickshire and North Northumberland Coast 160731 England/Scotland, United Kingdom  
Buskett - Girgenti Area 557 Malta  
Carmarthen Bay and Estuaries/ Bae Caerfyrddin ac Aberoedd 163340 Wales, United Kingdom
Chilterns Beechwoods 3154 England, United Kingdom  
Craven Limestone Complex 13166 England, United Kingdom
Dorset Heaths 14161 England, United Kingdom
Essex Estuaries 114016 England, United Kingdom
Exmoor Heaths 26455 England, United Kingdom
Gateway National Recreation Area V 1807 New Jersey, United States
Great Smoky Mountains National Park II 515454 North Carolina, Tennessee, United States
Indiana Dunes National Lakeshore II 8272 Indiana, United States
Isles of Scilly Complex 66350 England, United Kingdom    
Kavkazskiy Biosphere Reserve Ia 692723 Krasnodar, Karachay-Cherkessia, Adygea, Russia
Lago Puelo National Park II 47607 Chubut, Argentina
Lizard Point 34565 England, United Kingdom    
Mendip Limestone Grasslands 1032 England, United Kingdom
Niagara Escarpment Biosphere Reserve 470167 Ontario, Canada  
North Norfolk Coast 7926 England, United Kingdom  
North Pennine Moors 254789 England, United Kingdom
North York Moors 108930 England, United Kingdom
Palava Protected Landscape Area V   Czech Republic  
Parco Del Somma-Vesuvio e Miglio D'Oro National Park II 33648 Italy
Pen Llyn a`r Sarnau/ Lleyn Peninsula and the Sarnau 360832 Wales, United Kingdom
Point Pelee National Park II 5764 Ontario, Canada
Riserva Regionale Bosco dei Bordighi 116 Italy  
Riserva Regionale Fontanile Nuovo 91 Italy  
Sefton Coast 11278 England, United Kingdom
Severn Estuary/ Môr Hafren 182155 England/Wales, United Kingdom
South Pennine Moors 160577 England, United Kingdom  
South Wight Maritime 49082 England, United Kingdom
Southern Appalachian Biosphere Reserve 37548505 North Carolina, Tennessee, United States  
The New Forest 72309 England, United Kingdom
The Wash and North Norfolk Coast 266284 England, United Kingdom
Voronezhskiy Biosphere Reserve 95835 Russia  
Y Fenai a Bae Conwy/ Menai Strait and Conwy Bay 65440 Wales, United Kingdom  


Apantesis nais[5]
Aphis violae[6]
Argynnis aglaja[6]
Argynnis lathonia <Unverified Name>[6]
Argynnis paphia (Silver-washed Fritillary)[5]
Argyreus hyperbius[5]
Boloria dia <Unverified Name>[6]
Boloria euphrosyne <Unverified Name>[6]
Boloria selene (Silver-bordered fritillary)[6]
Clossiana dia[5]
Dasineura affinis[6]
Euxoa cursoria (Coast Dart)[6]
Fabriciana adippe (High Brown Fritillary)[5]
Myzus cymbalariae (Cymbalaria aphid)[6]
Noctua fimbriata (Broad-bordered Yellow Underwing)[6]
Orobitis cyanea[6]
Phlogophora meticulosa (Angle Shades Moth)[6]
Protoemphytus pallipes <Unverified Name>[6]
Rusina ferruginea (Brown Rustic)[6]
Spilosoma luteum <Unverified Name>[6]


Caribbean; North America; Oceania;



Attributes / relations provided by
1Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
2Plants For A Future licensed under a Creative Commons License
3ECOFACT 2a Technical Annex - Ellenberg’s indicator values for British Plants, M O Hill, J O Mountford, D B Roy & R G H Bunce (1999)
4Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
5HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández
6Biological Records Centre Database of Insects and their Food Plants
Protected Areas provided by GBIF Global Biodiversity Information Facility
Natura 2000, UK data: © Crown copyright and database right [2010] All rights reserved. Ordnance Survey Licence number 100017955
Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Images provided by Plants For A Future licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access