We have recently published ‘Food Forest Plants for Hotter Conditions’: i.e. tropical and sub-tropical regions. We rely on regular donations to keep our free database going and help fund development of this and another book we are planning on food forest plants for Mediterranean climates. Please give what you can to keep PFAF properly funded. More >>>

Follow Us:

 

Hovenia dulcis - Thunb.

Common Name Japanese Raisin Tree
Family Rhamnaceae
USDA hardiness 5-9
Known Hazards None known
Habitats Plains and mountains to 2000 metres in W. China[109]. Secondary forest[266].
Range E. Asia - China to the Himalayas.
Edibility Rating    (3 of 5)
Other Uses    (3 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care (info)
Fully Hardy Moist Soil Full sun
Hovenia dulcis Japanese Raisin Tree


Hovenia dulcis Japanese Raisin Tree

 

Translate this page:

Summary


Physical Characteristics

 icon of manicon of lolypop
Hovenia dulcis is a deciduous Tree growing to 10 m (32ft) by 7 m (23ft).
See above for USDA hardiness. It is hardy to UK zone 6 and is not frost tender. It is in flower in July, and the seeds ripen from September to October. The species is hermaphrodite (has both male and female organs).
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 moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

H. acerba. H. inequalis.

Plant Habitats

Woodland Garden Secondary; Sunny Edge;

Edible Uses

Edible Parts: Fruit
Edible Uses: Sweetener

Fruit - raw or cooked[2, 11, 158]. They can be dried when they have the sweet flavour and texture of raisins and can be used similarly[183]. The fruit is sweet and fragrant[105, 147] with a pear-like flavour[218]. Dry and sub-acid[61]. It is not a true fruit but a swollen receptacle[200]. The fruit is up to 3cm long[2], it contains 11.4% glucose, 4.7% fructose and 12.6% sucrose[218]. A sweet extract of the seed, boughs and young leaves is used as a substitute for honey[183]. The seed contains 15% protein and 7.8% fat[218].

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Antispasmodic  Febrifuge  Laxative

Antispasmodic, febrifuge, laxative[147, 178]. The fruit is antispasmodic, febrifuge, laxative and diuretic[218]. The seeds are diuretic and are used in the treatment of alcohol overdose[218]. The seeds are used to relieve intoxication due to wine[240]. The stem bark is used in the treatment of rectal diseases[218].

References   More on Medicinal Uses

The Bookshop: Edible Plant Books

Our Latest books on Perennial Plants For Food Forests and Permaculture Gardens in paperback or digital formats.

Food Forest Plants for Hotter Conditions: 250+ Plants For Tropical Food Forests & Permaculture Gardens.
Edible Tropical Plants

Food Forest Plants for Hotter Conditions: 250+ Plants For Tropical Food Forests & Permaculture Gardens.

More
Plants for Your Food Forest: 500 Plants for Temperate Food Forests & Permaculture Gardens.
Edible Temperate Plants

Plants for Your Food Forest: 500 Plants for Temperate Food Forests & Permaculture Gardens.

More
PFAF have eight books available in paperback and digital media.
More Books

PFAF have eight books available in paperback and digital formats. Browse the shop for more information.

Shop Now

Other Uses

Wood

The wood is hard and fine grained. It is good for making furniture[266].

Special Uses

Food Forest  Scented Plants

References   More on Other Uses

Cultivation details

Grows well in a fertile sandy loam in a sunny position[200]. Although the dormant plant is hardy to at least -15°c in Britain, it really prefers a continental climate to fully ripen its wood, it is then hardy to about -25°c[200]. The shoot tips are sometimes damaged by winter frosts in Britain[1] and the young growth in spring can also be damaged by late frosts[K]. The Japanese raisin tree is said to grow well in Cornwall[59], though our experience of this plant so far (1995) is that it is very difficult to establish. Perhaps older plants are as hardy as the reports above suggest, but younger plants are quite tender and often die in their first few winters outdoors[K]. The Japanese raisin tree is cultivated for its edible fruit in Japan. The small white flowers are scented and are produced in terminal cymes[245]. The plant is heat tolerant in zones 8 through 5. (Plant Hardiness Zones show how well plants withstand cold winter temperatures. Plant Heat Zones show when plants would start suffering from the heat. The Plant Heat Zone map is based on the number of "heat days" experienced in a given area where the temperature climbs to over 86 degrees F (30°C). At this temperature, many plants begin to suffer physiological damage. Heat Zones range from 1 (no heat days) to 12 (210 or more heat days). For example Heat Zone. 11-1 indicates that the plant is heat tolerant in zones 11 through 1.) For polyculture design as well as the above-ground architecture (form - tree, shrub etc. and size shown above) information on the habit and root pattern is also useful and given here if available. The plant growth habit is a standard with a non-suckering single trunk [1-2].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Fahrenheit:

image

The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees,Edible Shrubs, Woodland Gardening, and Temperate Food Forest Plants. Our new book is Food Forest Plants For Hotter Conditions (Tropical and Sub-Tropical).

Shop Now

Plant Propagation

Seed - germinates freely if sown as soon as it is ripe in a cold frame[200]. Stored seed should be scarified and sown in early spring[113], it may not germinate for a year. Prick out the seedlings into individual pots when large enough to handle and grow on for at least their first winter in a greenhouse. Plant out in late spring after the last expected frosts and give some winter protection for their first couple of years outdoors. Cuttings of half-ripe wood, July/August in a frame[200]. Cuttings of mature wood, late autumn in a frame[200].

Other Names

If available other names are mentioned here

Native Range

TEMPERATE ASIA: Anhui Sheng, Gansu Sheng, Hebei Sheng, Henan Sheng, Hokkaidô (Okushiri Island), Honshu, Hubei Sheng (west), Japan, Jiangsu Sheng, Jiangxi Sheng, Korea, Kyushu, Shaanxi Sheng, Shandong Sheng, Shanxi Sheng, Shikoku, Sichuan Sheng (north),China.

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 NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther

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

Thunb.

Botanical References

11200266

Links / References

For a list of references used on this page please go here

Readers comment

monica   Mon Dec 26 2005

do you have any charts, graphs, and pictures?

Bryan   Wed Feb 8 2006

I am growing a Japanese Raisin Tree in Seattle, USA (48DEG North-- cool mediterranean type climate: wet winters, dry summers). I received this 2 year-old tree from a nursery. If anyone is interested to know how it goes, I'd be happy to respond. Email [email protected] :)

Egon   Sun Apr 9 2006

Hi Bryan, I would like to know whether you got any fall color there in Seattle. We have quite many Japanese Raisin Trees here in zone 10A and they show very poor fall color, usually a golden mixed with the remaining green. My email is [email protected]

Alejandro B. Hernandez   Fri Apr 27 2007

I need to know how or were I can buy the extract of the Hovenia tree.

Denny Luby   Tue Jan 22 2008

Do you get fruit? I have had a Hovenia dulcis for 5 years with no fruit. Three years ago I grafted scion from a fruiting tree now I have had heavy fruiting since the first year if the graft.

Steve   Thu Nov 19 2009

Is there any company selling the Hovenia Dulcis Extract? If you do or know, please send me a line to [email protected] I prefer U.S origin since I live U.S. I want this for exporting outside of country.

Paul Barney   Thu Dec 31 2009

I have planted Hovenia dulcis outside in a couple of locations in Berkshire. The trees grow away very quickly. The tree in the nursery is 8m in just 5 years. As yet no fruit has set.

Add a comment

If you have important information about this plant that may help other users please add a comment or link below. Only comments or links that are felt to be directly relevant to a plant will be included. If you think a comment/link or information contained on this page is inaccurate or misleading we would welcome your feedback at [email protected]. If you have questions about a plant please use the Forum on this website as we do not have the resources to answer questions ourselves.

* Please note: the comments by website users are not necessarily those held by PFAF and may give misleading or inaccurate information.

To leave a comment please Register or login here All comments need to be approved so will not appear immediately.

Subject : Hovenia dulcis  
© 2010, Plants For A Future. Plants For A Future is a charitable company limited by guarantee, registered in England and Wales. Charity No. 1057719, Company No. 3204567.