Weigela japonica

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Weigela japonica
Light:Full Sun Part Shade
Moisture:Mesic
Hardiness:6
Soil pH:5.6-8.4
Height:16'
Blooms:Late Spring-Early Summer
Native to:
Medicinal Rating:
Tea:Yes
Poisonous

Weigela japonica

Propagation: Seed - we have no information for this species but suggest sowing the seed in a cold frame as soon as it is ripe if this is possible, otherwise in late winter or early spring. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in a cold frame for their first winter. Plant them out in late spring or early summer.

Softwood basal cuttings, 10 - 12cm long, in a sandy soil in a cold frame in early summer[1].

Cuttings of half-ripe wood, 8 - 10 cm with a heel, July/August in a frame[1].

Cuttings of mature wood of the current seasons growth. 20 cm long, November in a sheltered outdoor nursery bed[1].

Cultivation: An easily grown plant, succeeding in most fertile soils[2][1]. Prefers a moist well-drained soil in sun or partial shade[1]. Tolerates atmospheric pollution[1].

Plants are very floriferous and can exhaust themselves, literally flowering themselves to death. The flowers are borne in the leaf nodes of the previous years growth and any pruning is therefore best done as soon as the plant has finished flowering[3].

There are some named forms selected for their ornamental value[1].

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

Range: E. Asia - C. and S. Japan.

Habitat: A rare plant, grwing on sunny hills and in mountains at elevations of 100 - 1800 metres[4].

Medicinal: Salve. Used as a wash for virulent sores[5].

Usage: Plants can be grown as a hedge[5].

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

Drainage: Prefers well drained soil.

Pollution: Tolerates environmental pollution.

Seed Ripens: Mid Fall-Late Fall

Flower Type: Hermaphrodite

Known Hazards: The leaves are slightly toxic[5].

Also Known As: Diervilla japonica. D. versicolor.

Links

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  2. Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
  3. Thomas, Graham. Ornamental Shrubs, Climbers and Bamboos. Murray, 1992.
  4. Flora of Japan.
  5. 5.0 5.1 5.2 Stuart, George. Chinese Materia Medica. Taipei Southern Materials Centre.