Coprosma robusta

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Coprosma robusta
Light:Full Sun Part Shade
Moisture:Mesic
Hardiness:9
Soil pH:5.6-7.3
Evergreen Cross Pollinated
Height:16'
Open Woods Forest
Native to:
Edible Rating:PFAF Edibility Rating
Medicinal Rating:PFAF Medicinal Rating
Tea:Yes
Poisonous

Coprosma robusta

Propagation: Seed - probably best sown as soon as it is ripe in a greenhouse or cold frame[K]. Sow stored seed in spring in a cold frame[1]. Germination can be slow, often taking more than 12 months even when fresh seed is used[K]. When the seedlings are large enough to handle, prick them out into individual pots. Grow on the plants for at least their first winter in a greenhouse and plant out in late spring or early summer. Give the plants some protection from the cold for their first winter outdoors[K].

Cuttings of mature wood of the current year's growth, autumn in a frame.

Cultivation: Requires a moist, very well-drained neutral to slightly acid soil in full sun or light shade[1]. Succeeds in most soils[2].

Somewhat intolerant of frost, this species is only likely to succeed outdoors in the mildest areas of Britain[3][1]. Plants are fairly hardy in Essex according to another report, which says that they are worthy shrubs for a woodland garden[2].

There are some named forms, selected for their ornamental value[2].

Hybridizes freely with other members of this genus[1][2].

Plants are tolerant of heavy clipping or pruning[2].

Plants are normally dioecious, though occasionally the plants produce a few flowers of the opposite sex before the main flowering and a few hermaphrodite flowers are sometimes produced[4][2]. Male and female plants must usually be grown if seed is required.

Range: New Zealand.

Habitat: Lowland forest and shrubland, especially on alluvial soils, on North, South and Chatham Islands, south to latitude 45°south[4][2].

Edibility: Fruit - raw or cooked[5]. The fruit is freely borne, it is sweet but has little flavour[2]. The orange fruit is about 9mm long x 5mm wide[1][2].

The roasted seed is a coffee substitute[6][5]. It is said to make an excellent coffee, though the seeds are rather small[2].

Medicinal: A concoction of boiled leaves and twigs has been used to treat wounds that are not healing[2].

The decoction of the leaves has been drunk in the treatment of kidney troubles[2].

Usage: A yellow dye is obtained from the wood, it does not require a mordant[6].

Pollinators: Wind

Soil: Can grow in light and medium soils.

Drainage: Prefers well drained soil.

In Leaf: Evergreen

Flower Type: Dioecious

Links

References

  1. 1.0 1.1 1.2 1.3 1.4 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  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 Knees, Sabina. The New Plantsman Volume 2. Royal Horticultural Society, 1995.
  3. Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  4. 4.0 4.1 Allan, Harry. Flora of New Zealand. Government Printer Publications, 1961.
  5. 5.0 5.1 Crowe, Andrew. Native Edible Plants of New Zealand. Hodder and Stoughton, 1990.
  6. 6.0 6.1 Brooker, Stanley. Economic Native Plants of New Zealand. Oxford University Press, 1991.