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Pittosporum ralphii - T.Kirk.

Common Name Ralph's desertwillow
Family Pittosporaceae
USDA hardiness 8-11
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].
Habitats Lowland to lower montane forest margins and streamsides between latitudes 37° 30' south and 40°south on North Island[44].
Range New Zealand.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Half Hardy Well drained soil Moist Soil Full sun
Pittosporum ralphii Ralph


J.S. Peterson @ USDA-NRCS PLANTS Database
Pittosporum ralphii Ralph
J.S. Peterson @ USDA-NRCS PLANTS Database

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Summary


Physical Characteristics

 icon of manicon of shrub
Pittosporum ralphii is an evergreen Shrub growing to 4 m (13ft) by 3 m (9ft).
It is hardy to zone (UK) 9. It is in leaf 12-Jan It is in flower in May. The species is hermaphrodite (has both male and female organs) Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil. The plant can tolerate maritime exposure.

Synonyms

Habitats

Woodland Garden Sunny Edge; Hedge;

Edible Uses

None known

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.



None known

Other Uses

Hedge;  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].

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Pittosporum balansae 10
Pittosporum bicolor 00
Pittosporum crassifoliumKaro, Stiffleaf cheesewood00
Pittosporum eugenioidesTarata11
Pittosporum phillyreoidesWeeping Pittosporum, Narrow-leaf Pittosporum21
Pittosporum tenuifoliumTawhiwhi20
Pittosporum tobiraTobira, Japanese cheesewood, Australian Laurel, Mock Orange, Japanese Pittosporum00
Pittosporum undulatumCheesewood, Australian cheesewood, Cheesewood, Pittosporum, Orange Berry Pittosporum, Victorian Box00

 

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Expert comment

Author

T.Kirk.

Botanical References

1144200

Links / References

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Subject : Pittosporum ralphii  
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