



Japanese honeysuckle
মধুমতী
Lonicera japonica Thunb.
- light
- Sun–part
- water
- Medium
- tall
- 8.5 m
- wide
- 3.7 m
Caprifoliaceae
Also called LONJAP, Golden honeysuckle vine
Formerly Caprifolium brachypodum, Caprifolium chinense, Caprifolium japonicum, Lonicera aureoreticulata, and 10 more
When it flowers
Flowers December to July in the tropics.
Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- LianaKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- China to Temp. E. AsiaKew's checklist, not yet checked
- Light
- Full sun to part shade (3 h or more)Read from RHS and NC State Extension, checked by a majority of its sourcesBacked by both sources
- Height
- 8.0 m to 9.0 mRead from RHS and NC State Extension, checked by a majority of its sourcesBacked by both sources. Sources differ: RHS 8–12 m; NC State Extension 16–29.5 ft
- Spread
- 2.5 m to 4.9 mRead from RHS and NC State Extension, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: RHS 4–8 m; NC State Extension 3–6 ft
- Water
- Average: moist, well drainedRead from RHS and NC State Extension, not yet checked: its sources are splitTied: no reading has a majority of the 2 sources, so all are kept for a person to settle. Sources differ: RHS medium; NC State Extension low
- Flowers
- White, yellowRead from RHS, NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by all 3 sources
- Coldest it survives
- -21.9 °C (USDA zone 6a)Read from RHS and NC State Extension, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: RHS -15 °C; NC State Extension -28.9 °C
Not known yet: heat, hottest it survives.
Grow it with
Suggested by a rule, not by a gardener: same climate (kew), flowering when this plant does not (inaturalist), and a different shape.
American black nightshadeFlowers August to November, when this does not
Bearded irisFlowers August to November, when this does not
Blackberry LilyFlowers August to November, when this does not
Bull ThistleFlowers August to November, when this does not
Common Cat's-earFlowers August to November, when this does not
Common groundselFlowers August to November, when this does not
In other languages (12)
- Portuguese
- Madressilva-dos-jardins
- Chinese
- 金銀花, 忍冬, 左纏藤
- Hawaiian
- honekakala
- Spanish
- Madreselva asiática, Madreselva
- Japanese
- スイカズラ, 吸い葛
- French
- Chèvrefeuille du Japon, Clématite du Japon
- Estonian
- jaapani kuslapuu
- German
- Japanisches Geißblatt
- Norwegian Bokmål
- japankaprifol, Japankaprifol
- Russian
- Жимолость японская
- Czech
- zimolez japonský
- Chinese (China)
- 忍冬, 金银花
Where this comes from
- iNaturalist, read 2026-10-24, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-26, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- RHS, read 2026-10-25, fact, cited
- NC State Extension, read 2026-10-25, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, Attribution
- iNaturalist, read 2026-10-25, CC BY-SA
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Lonicera japonica (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.