Cordyline indivisa

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Cordyline indivisa
Light:Full Sun Part Shade
Moisture:Mesic
Hardiness:8
Soil pH:5.6-8.4
Evergreen
Height:26'
Width:7'
Speed:Slow
Native to:
Edible Rating:PFAF Edibility RatingPFAF Edibility RatingPFAF Edibility Rating
Tea:Yes
Poisonous

Cordyline indivisa (common name: cabbage tree)

Propagation: Seed - pre-soak for about 10 minutes in warm water and sow in late winter to early spring in a warm greenhouse[1][2]. The seed usually germinates in 1 - 3 months at 25°c[2]. There is usually a good percentage germination[1]. Prick out the seedlings into individual pots as soon as they are large enough to handle and grow them on in the greenhouse for at least their first winter. Plant out in late spring after the last expected frosts and give the plants some protection in their first winter outdoors[K].

Stem cuttings - cut off the main stem just below the head and then saw off 5cm thick blocks of stem and place them 3cm deep in pure peat in a heated frame. Keep them moist until they are rooting well, then pot them up into individual pots. Plant out in late spring after the last expected frosts.

Suckers. These are best removed in early spring and planted out in situ. Protect the division from wind and cold weather and do not allow the soil to become dry until the plant is established. Divisions can also be potted up and grown on until established, planting them out in the summer.

Cultivation: Prefers a good sandy loam rich in humus[3][4]. Succeeds in full sun or light shade[5]. Likes a rich soil[4]. Plants grow well in coastal areas[6].

Plants are not very hardy in Britain, they tolerate temperatures down to about -3°c[6] though one report says that they can survive occasional lows down to about -10°c[4]. They succeed outdoors in the milder areas of Britain[4]. This species is more tender than C. australis[7][8].

A very ornamental plant[3], it should be planted in its permanent position as soon as possible after the first winter[4].

Mice often kill young plants by eating out the pith of the stem[4].

Range: New Zealand.

Habitat: Wetter mountains in North and South Islands[9]. Openings in wet forests[6].

Edibility: Root - baked[10].

Pith of the trunk - dried and steamed until soft[10]. Sweet and starchy, it is used to make porridge or a sweet drink[10].

The root and stems are rich in fructose, the yields compare favourably with Sugar Beet (Beta vulgaris altissima)[11].

Edible shoots - a cabbage substitute[12][13][10]. The leaves are very fibrous even when young, we would not fancy eating them[K].

Edible fruit[14][12][15]. The fruit is about 6mm in diameter[16].

Usage: The leaves contain saponins, but not in commercial quantities[11].

The leaves contain a strong fibre, used for making paper, twine, cloth, baskets, thatching, rain capes etc[3][17][18][13][11]. The whole leaves would be used for some of these applications. This species makes very strong rain capes[11]. The midrib of the leaves provides a fine red-coloured strip for plaiting. It makes a very strong rope, lasting longer in water than Phormium tenax[11].

Soil: Can grow in light and medium soils.

Wind: Tolerates maritime wind exposure

In Leaf: Evergreen

Flower Type: Hermaphrodite

Also Known As: Dracaena indivisa.

Links

References

  1. 1.0 1.1 Sheat, Wilfrid. Propagation of Trees, Shrubs and Conifers. St Martin, 1948.
  2. 2.0 2.1 Bird, Alfred. Growing from Seed Volume 4. Thompson and Morgan, 1990.
  3. 3.0 3.1 3.2 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  4. 4.0 4.1 4.2 4.3 4.4 4.5 Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
  5. Brickell, Christopher. The RHS Gardener's Encyclopedia of Plants and Flowers. Dorling Kindersley Publishers, 1990.
  6. 6.0 6.1 6.2 Phillips, Roger and Martyn Rix. Conservatory and Indoor Plants Volumes 1 & 2. Pan Books, London, 1998.
  7. Arnold-Forster, William. Shrubs for the Milder Counties.
  8. Thurston, Edgar. Trees and Shrubs in Cornwall. Cambridge University Press, 1930.
  9. Allan, Harry. Flora of New Zealand. Government Printer Publications, 1961.
  10. 10.0 10.1 10.2 10.3 Crowe, Andrew. Native Edible Plants of New Zealand. Hodder and Stoughton, 1990.
  11. 11.0 11.1 11.2 11.3 11.4 Brooker, Stanley. Economic Native Plants of New Zealand. Oxford University Press, 1991.
  12. 12.0 12.1 Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
  13. 13.0 13.1 Laing, Robert. Plants of New Zealand. Whitcombe and Tombs Ltd, 1907.
  14. Hedrick, Ulysses. Sturtevant's Edible Plants of the World. Dover Publications, 1972.
  15. Kunkel, Günther. Plants for Human Consumption. Koeltz Scientific Books, 1984.
  16. Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  17. Uphof, Johannes. Dictionary of Economic Plants. Weinheim, 1959.
  18. Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.