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Olearia x haastii

Common name:		Family:	Compositae
Author:	Hook.f.	Botanical references:	11, 200
Synonyms:
Known Hazards:	None known
Range:	New Zealand.
Habitat:	A naturally occurring hybrid, O. avicenniifolia x O. moschata[11].
Edibility Rating (1-5):	0	Medicinal Rating (1-5):	0

Systematics:	From a USDA Plants Database
	Order: Asterales. Renamed to Asteraceae -- Aster family

Physical Characteristics

An evergreen shrub growing to 2.5m by 2.5m . It is hardy to zone 8. It is in leaf all year, in flower from July to August, and the seeds ripen from August to September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects. We rate it 0/5 for edibility and 0/5 for medicinal use.

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

Habitats and Possible Locations

Hedge.

Edible Uses

None known

Medicinal Uses

Disclaimer

None known

Other Uses

Hedge.

Very resistant to maritime exposure and tolerant of severe pruning, this plant can be used as an effective windbreak hedge in exposed maritime areas. It makes a good dwarf hedge that rarely exceeds 2 metres in height[75].

Cultivation details

Succeeds in any well-drained moderately fertile soil in full sun[182, 200]. Thrives in a chalky soil[182] but prefers a light loam or peaty soil[11]. Very tolerant of maritime exposure[75, 200] and atmospheric pollution[182, 200].
A very ornamental plant[1], it is hardy to about -15°c[184], succeeding outdoors at Kew but liable to be cut back to the ground in severe winters[11]. It is perfectly hardy, however, in the mild maritime areas of Britain[200].
Plants flower best in years that follow long hot summers[200].
Can be pruned right back into old wood in order to promote fresh growth[200]. Any pruning is best done in the spring[11]. It is best to trim new growth of young plants by 50% each year for the first three years after planting in order to promote basal shoots[29].

Propagation

Seed - surface sow in early spring in a greenhouse. Do not allow the compost to dry out. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in the greenhouse for their first winter. If growth has been sufficiently good, plant them out into their permanent positions in early summer of the following year, otherwise grow them on for another year in pots and plant them out the following early summer. This species is a hybrid and so will not breed true from seed.
Cuttings of half-ripe wood, 5 - 10cm with a heel, July/August in a frame. Pot up in late August and overwinter in a cold frame then plant out in late spring or early summer[78]. Good percentage[11].
Cuttings of moderately ripe wood of the current years growth, 5 - 10cm with a heel, November in a frame. High percentage[78].

Suppliers

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

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

See the PFAF Links Pages for other sources.

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

References

[1] F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).

[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.

[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.

[182] Thomas. G. S. Ornamental Shrubs, Climbers and Bamboos. Murray 1992 ISBN 0-7195-5043-2
Contains a wide range of plants with a brief description, mainly of their ornamental value but also usually of cultivation details and varieties.

[184] Phillips. R. & Rix. M. Shrubs. Pan Books 1989 ISBN 0-330-30258-2
Excellent photographs and a terse description of 1900 species and cultivars.

[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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Bibliography

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
Blagdon Cross, Ashwater, Beaworthy, Devon, EX21 5DF, UK.
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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.