Rubus biflorus

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Rubus biflorus
Light:Full Sun Part Shade
Moisture:Mesic
Soil pH:5.6-8.4
Height:11'
Width:11'
Blooms:Mid Summer
Open Woods Forest
Native to:
Edible Rating:PFAF Edibility RatingPFAF Edibility RatingPFAF Edibility Rating
Tea:Yes
Poisonous

Rubus biflorus

Propagation: Seed - requires stratification and is best sown in early autumn in a cold frame. Stored seed requires one month stratification at about 3°c and is best sown as early as possible in the year. Prick out the seedlings when they are large enough to handle and grow on in a cold frame. Plant them out into their permanent positions in late spring of the following year.

Cuttings of half-ripe wood, July/August in a frame[1].

Tip layering in July. Plant out in autumn.

Division in early spring or just before leaf-fall in the autumn[1].

Cultivation: Easily grown in a good well-drained loamy soil in sun or semi-shade[2][3][1].

Hardy to about -15°c[4]. Another report suggests that the plant will only succeed outdoors in the mildest parts of the country[1].

The plant has ornamental white canes but it needs plenty of space and is not a good neighbour because of its prickly stems[5].

This species is a raspberry with biennial stems, it produces a number of new stems each year from the perennial rootstock, these stems fruit in their second year and then die[1].

Plants in this genus are notably susceptible to honey fungus[1].

Range: E. Asia - China to the Himalayas.

Habitat: Scrub, forest edges and open slopes, 1800 - 3300 metres[6][4]. Valleys, riversides, slopes, roadsides, thickets, forests and forest margins at elevations of 1500 - 3500 metres[7].

Edibility: Fruit - raw or cooked[8][3][6][9][10]. The yellow fruit is pleasantly flavoured[2]. Sweetish[11]. The fruit is about 20mm in diameter[1].

Usage: A purple to dull blue dye is obtained from the fruit[12].

Pollinators: Insects

Soil: Can grow in light, medium, and heavy soils.

Drainage: Prefers well drained soil.

Seed Ripens: Late Summer-Early Fall

Flower Type: Hermaphrodite

Links

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  2. 2.0 2.1 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  3. 3.0 3.1 Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
  4. 4.0 4.1 Phillips, Roger and Martyn Rix. Shrubs. Pan Books, 1989.
  5. Thomas, Graham. Ornamental Shrubs, Climbers and Bamboos. Murray, 1992.
  6. 6.0 6.1 Polunin, Oleg and Adam Stainton. Flowers of the Himalayas. Oxford Universtiy Press, 1984.
  7. Flora of China. 1994.
  8. Hedrick, Ulysses. Sturtevant's Edible Plants of the World. Dover Publications, 1972.
  9. Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
  10. Manandhar, Narayan. Plants and People of Nepal. Timber Press, 2002.
  11. Gupta, Basant. Forest Flora of Chakrata, Dehra Dun and Saharanpur. Forest Research Institute Press, 1945.
  12. Grae, Ida. Nature's Colors. MacMillan Publishing, 1974.