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Olive Trees
Written By: Ben Visser

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Olive Trees available from O.S.A

Only the best genetic material is used to propagate the young olive trees. Young trees are grown with a single stem in the nursery to make them more suitable for single leader training as well as open vase systems. 

The most important new cultivars and clones for quality oil production, as well as table olive processing, are available.

Descriptions of New Cultivars:


The main Greek oil variety. Seen as of medium to low vigor, Koroneiki comes early into production with high and constant productivity and not as subject to alternate bearing. The fruit are small (2g) yielding 20 – 22%oil containing high percentage of oleic acid, highly stable in quality.

Koroneiki flowers early, produces abundant pollen, but needs pollinators. Frantoio, Barnea, Coratina, Arnequina and Picual is proven pollinators. Fruit ripens early to middle of the season. The cultivar is drought resistant, not cold tolerant, resistant to peacock spot, moderately Verticillium resistant.

Soon to be released from quarantine:


Spanish oil cultivar, of medium vigour with a dense and spreading canopy. Produces commercial crops early and bears heavy and constant. During the first years the fruit tend to be larger than normal and are highly rated for picking as black olives for the firmness of their flesh. The oil is of medium quality (18 – 22% oil) but with extraordinary stable quality, often blended with other oils which has low stability.

Picual has the ability to produce up to 28kg per tree. Fruit ripen mid to late season. Picual is highly rates as a general pollinator, self pollinating successfully.

Very hardy and adaptable to different soil and climate conditions. Tolerant to cold and salinity in Australia. Sensitive to peacock spot and Verticillium. Suitable to mechanical harvesting due to low fruit attachment.

Descriptions of other cultivars:


Italian oil cultivar with oil content of 18-20%. A semi-pendulous tree producing a very sharp flavourful, stable sought after oil. Medium sized fruit, highly productive and intermediate start bearing (year 8).

Frantoio is self-fertile and an excellent pollinator to other cultivars. Widely adaptable and fairly resistant to verticillium.

Useful to the home gardener when planted with Mission. The fruit may be used as table olives.

Coratina :

Italian oil cultivar with oil content of 19-24%. The oil has a strong peppery flavour with high polyphenol levels.

This variety is characterized by early production and high yields and by its very good adaptability to different soils and climates. It is an excellent choice for hot climates, but dislikes water logging. Requires pollinators such as Barnea, Frantoio and Arbequina.

Nocellara del Belice:

A Sicilian cultivar planted for green table olives and oil. The oil content is 16 – 20%.

A medium vigourous variety with pendulous growth habit. Adaptable to cold, fairly tolerant of drought and saline soils. Cross pollinating wqith Coratina, Frantoio, Arbequina and Barnea.


Italian oil cultivar with oil content of 18 – 20%. A more delicate oil without bitterness.

Although vigourous and adaptable to low temperatures and peacock spot, lower yield must be expected especially in hotter regions. Early compact harvest period. Low pollen quality and needs ample cross pollination from Barnea, Arbequina, Frantoio and Coratina.


An American cultivar used for both oil and green and black table olives. The oil content is lower (12 -16%) and processes slower than newer cultivars.

The tree grows vigorously and upright. Bears early, but of low genetic potential and inconsistent in yield. Due to low pollen quality, ample pollinators are required, normally Frantoio. Sensitive to wet soils and verticillium.

The information supplied on this website is used at your own discretion. Please refer to our disclaimer

Meet Ben Visser

Meet with Ben Visser a leader in the South African Olive Oil Industry. Ben has helped numerous people grow their olive-based businesses into prosperous ventures with his tried on proven methods.  

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