Practical
Plants

Elaeagnus yoshinoi

a perennial woody deciduous member of the Elaeagnus genus in the family Elaeagnaceae.

No photo available

Taxonomy and growth

Life cycle
perennial
Foliage
deciduous
Woodiness
woody
Fertility
Insects
Flower type
hermaphrodite
Pollinators
Insects

Uses

Edible uses

This section contains historical Plants For A Future notes marked noncommercial.

Fruit - raw or cooked[3]. The fruit must be fully ripe before it can be enjoyed raw, if even slightly under-ripe it will be quite astringent[K]. The fruit is about 10mm long and contains a single large seed[K, 275]. Seed - raw or cooked. It can be eaten with the fruit though the seed case is rather fibrous[K].

Plant part
Fruit
Plant part
Seed

Medicinal uses

Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.

This section contains historical Plants For A Future notes marked noncommercial.

The fruit of many members of this genus is a very rich source of vitamins and minerals, especially in vitamins A, C and E, flavanoids and other bio-active compounds. It is also a fairly good source of essential fatty acids, which is fairly unusual for a fruit. It is being investigated as a food that is capable of reducing the incidence of cancer and also as a means of halting or reversing the growth of cancers[5].

Product or use
Cancer

Ecology and functions

Nitrogen fixer

Environment

Range
E. Asia - C. Japan.
Habitat
Not known
Light
full sun
Shade tolerance
light shade
Water
moderate
Soil textures
sandy, loamy, clay
Soil pH
acid, neutral, alkaline
Drainage
well drained
Tolerances
high wind, drought
Wind
Yes
Tolerates Nutritionally Poor Soil
No
Drought
tolerant

Propagation

This section contains historical Plants For A Future notes marked noncommercial.

Seed - best sown as soon as it is ripe in a cold frame[7]. It should germinate in late winter or early spring, though it may take 18 months[K]. Stored seed can be very slow to germinate, often taking more than 18 months. A warm stratification for 4 weeks followed by 12 weeks cold stratification can help[9]. The seed usually (eventually) germinates quite well[7]. Prick out the seedlings into individual pot as soon as they are large enough to handle and plant out when they are at least 15cm tall. Cuttings of half-ripe wood, 7 - 10cm with a heel, July/August in a frame. Cuttings of mature wood of the current year's growth, 10 - 12cm with a heel, October/November in a frame[4]. The cuttings are rather slow and difficult to root, leave them for 12 months[2]. Layering in September/October. Takes 12 months[7].

Cultivation

This section contains historical Plants For A Future notes marked noncommercial.

We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in many parts of this country. The plant is endemic to Japan, where it is very rare, and is included in the 1997 IUCN Red List of Threatened Plants. The following notes are based on the general needs of the genus. Succeeds in most soils that are well-drained[1][4]. Prefers a soil that is only moderately fertile, succeeding in poor soils and in dry soils[1][4]. Established plants are drought resistant. This species is notably resistant to honey fungus[8][4]. This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[4]. An excellent companion plant, when grown in orchards it can increase yields from the fruit trees by up to 10%.

References

  1. Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray 1981-00-00

    ↩1↩2

  2. Dirr. M. A. and Heuser. M. W. The Reference Manual of Woody Plant Propagation. Athens Ga. Varsity Press 1987-00-00 ISBN 0942375009

    ↩

  3. Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984-00-00 ISBN 3874292169

    ↩

  4. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

    ↩1↩2↩3↩4↩5

  5. Matthews. V. The New Plantsman. Volume 1, 1994. Royal Horticultural Society 1994-00-00 ISBN 1352-4186

    ↩

  6. Flora of Japan www.foj.info

  7. Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co 1948-00-00

    ↩1↩2↩3

  8. RHS. The Garden. Volume 112. Royal Horticultural Society 1987-00-00

    ↩

  9. Gordon. A. G. and Rowe. D. C. f. Seed Manual for Ornamental Trees and Shrubs.

    ↩

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