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Pittosporum ralphii

Common name:		Family:	Pittosporaceae
Author:	T.Kirk.	Botanical references:	11, 44, 200
Synonyms:
Known Hazards:	This plant contains saponins[152, 154]. Saponins are found in many foods, such as some beans, and although they are fairly toxic to people they are poorly absorbed by the body and most pass straight through without any problem. They are also broken down if the food is thoroughly cooked for a long time. Saponins are much more toxic to some creatures, such as fish, and hunting tribes have traditionally put large quantities of them in streams, lakes etc in order to stupefy or kill the fish[K].
Range:	New Zealand.
Habitat:	Lowland to lower montane forest margins and streamsides between latitudes 37° 30' south and 40° south on North Island[44].
Edibility Rating (1-5):	0	Medicinal Rating (1-5):	0

Systematics:	From a USDA Plants Database
	Order: Rosales. Pittosporum family

Physical Characteristics

An evergreen shrub growing to 4m by 3m . It is hardy to zone 9. It is in leaf all year, in flower in May. The flowers are hermaphrodite (have both male and female organs). We rate it 0/5 for edibility and 0/5 for medicinal use.

The plant prefers light (sandy) and medium (loamy) soils and requires well-drained soil. The plant prefers acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It requires dry or moist soil. The plant can tolerate maritime exposure.

Habitats and Possible Locations

Hedge, Woodland, Sunny Edge.

Edible Uses

None known

Medicinal Uses

Disclaimer

None known

Other Uses

Hedge.

Succeeds as a windbreak hedge in severe maritime exposure[75, 200].

Cultivation details

Requires a well-drained light loamy soil and a sunny position[200]. Very resistant to salt-laden winds[11, 29].
This species is not very cold-hardy outdoors in Britain, tolerating temperatures down to about -5° c[200]. Plants succeed outdoors in milder areas of the country though they need greenhouse protection elsewhere[11, 29].
Very amenable to pruning, plants can be cut right back into old wood if required[200].
Closely related to P. crassifolium[11, 75].
The species in this genus are very likely to hybridize with other members of the genus[200]. When growing a species from seed it is important to ensure that the seed either comes from a known wild source, or from isolated specimens in cultivation.
Plants in this genus are notably resistant to honey fungus[200].

Propagation

Seed - sow when ripe in the autumn or in late winter in a warm greenhouse[78, 200]. The seed usually germinates freely. Prick out the seedlings into individual pots when they are large enough to handle, move the plants to a cold frame as soon as they are established and plant out late in the following spring[78]. Consider giving them some protection from the cold during their first winter outdoors.
Cuttings of half-ripe wood, 5 - 7cm with a heel, July/August in a frame. Poor to fair percentage[78].
Basal ripewood cuttings late autumn in a cold frame[200].

Suppliers

For more details of plant suppliers please see our Suppliers Page which lists many more places to look.

PFAF Web Pages

This plant is mentioned in the following web pages

Web References

[G] Data (Common Names, Uses, Distribution) from the USDA/ARS NPGS's GRIN taxonomic database.
[HP] Links, Photos, Suppliers from Hortiplex Plant Database

References for the family Pittosporaceae.

[CHINA] Draft Data Very detailed botanical/identification info. from the Flora of China.

See the PFAF Links Pages for other sources.

Also try Photos and info from the The Plants Database which has 14,000 images.

References

[K] Ken Fern
Notes from observations, tasting etc at Plants For A Future and on field trips.

[11] Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray 1981
A classic with a wealth of information on the plants, but poor on pictures.

[29] Shepherd. F.W. Hedges and Screens. Royal Horticultural Society. 1974 ISBN 0900629649
A small but informative booklet giving details of all the hedging plants being grown in the R.H.S. gardens at Wisley in Surrey.

[44] Allan. H. H. Flora of New Zealand. Government Printer, Wellington. 1961
The standard work, in 3 volumes though only the first two are of interest to the plant project. Very good on habitats.

[75] Rosewarne experimental horticultural station. Shelter Trees and Hedges. Ministry of Agriculture, Fisheries and Food 1984
A small booklet packed with information on trees and shrubs for hedging and shelterbelts in exposed maritime areas.

[78] Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co 1948
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.

[152] Lassak. E. V. and McCarthy. T. Australian Medicinal Plants.
A very good and readable guide to the subject.

[154] Ewart. A. J. Flora of Victoria.
A flora of eastern Australia, it is rather short on information that is useful to the plant project.

[200] Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992 ISBN 0-333-47494-5
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

Readers Comments

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Plant information taken from the Plants For A Future - Species Database. Copyright (c) 1997-2003.
WEB search engine by Rich Morris - Home Page- Contact Info
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We make no claims of magical effects or supernatural powers for any item in this catalog. In spite of legendary attributes or occult and craft tradition, such items are offered as curios only and beliefs concerning their magical effectiveness are related only for historical interest.