Cotoneaster glaucophyllus

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Cotoneaster glaucophyllus
Light:Full Sun Part Shade
Moisture:Xeric Mesic
Hardiness:7
Soil pH:5.6-8.4
Evergreen
Height:10'
Width:10'
Speed:Moderate
Blooms:Mid Summer
Open Woods Forest
Native to:
Shelter
Tea:Yes
Poisonous

Cotoneaster glaucophyllus

Propagation: Seed. Members of this genus hybridize freely so, if you require seed that breeds true, it is important to obtain it from a known wild source or from a controlled fertilization of garden plants. The seed is best sown as soon as it is ripe in the autumn in a cold frame, when it will usually germinate in the spring[1][2]. Stored seed germinates faster if given 3 months warm stratification at 15°c and then 3 months cold stratification at 4°c[3]. The seed usually germinates within 1 - 18 months at 15°c but it can take 2 years[3]. Pot the seedlings up as soon as they are large enough to handle and plant them out into nursery beds or into their permanent positions when they are more than 10cm tall.

Cuttings of half-ripe wood with a heel, July/August in a frame[1][2].

Cultivation: An easily grown plant, it prefers a good soil but also does well in poor soils[4][1][2]. It thrives in lime and is also happy in peaty soils[4]. It succeeds in any soil that is not marshy or waterlogged[1][2]. Succeeds in dry soils[5]. Grows well in heavy clay soils. Succeeds in full sun or semi-shade but does not fruit so freely in a shady position[1][2]. Tolerates atmospheric pollution[2]. Fairly tolerant of maritime exposure[6][2].

Hybridizes freely with other members of this genus[2].

The flowers, when inhaled near to, have an unpleasant smell like decaying fish[7]. They are very attractive to bees whilst the fruit is a good winter food source for many species of birds[2].

The species is not often found in British gardens, it is usually represented by the sub-species C. glaucophyllus serotinus[8]. This plant is recognized as having specific status in [2] and is treated as such here[K].

Trees are notably susceptible to honey fungus[2].

Range: E. Asia - W. China.

Habitat: Scrub, hedgerows and rocky places in calcareous soils[2]. Mixed forests and thickets in mountain regions at elevations of 1200 - 3000 metres[9].

Usage: Can be grown as a windbreak hedge, succeeding in all but the most exposed positions[6]. Tolerates trimming[6]. It is fairly fast growing, making about 45cm a year[6]. (This report is possibly referring to C. serotinus. Hutch. [synonym C. glaucophyllus serotina].

A rose-tan dye is obtained from the fruit[10].

Pollinators: Flies, midges

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

Drainage: Prefers well drained soil.

Wind: Tolerates maritime wind exposure

Pollution: Tolerates environmental pollution.

In Leaf: Evergreen

Seed Ripens: Mid Fall-Early Winter

Flower Type: Hermaphrodite

Heavy Clay: Grows in heavy-clay soils.

Links

References

  1. 1.0 1.1 1.2 1.3 1.4 Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
  2. 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  3. 3.0 3.1 Bird, Alfred. Growing from Seed Volume 4. Thompson and Morgan, 1990.
  4. 4.0 4.1 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  5. Brickell, Christopher. The RHS Gardener's Encyclopedia of Plants and Flowers. Dorling Kindersley Publishers, 1990.
  6. 6.0 6.1 6.2 6.3 Rosewarne Experimental Horticultural Station. Shelter Trees and Hedges. Ministry of Agriculture, Fisheries and Food, 1984.
  7. Genders, Roy. Scented Flora of the World. Robert Hale, 1994.
  8. Thomas, Graham. Ornamental Shrubs, Climbers and Bamboos. Murray, 1992.
  9. Flora of China. 1994.
  10. Grae, Ida. Nature's Colors. MacMillan Publishing, 1974.