Olea Wilsonii Characteristics, Size, Growth Rate, Care

| May 26, 2021

Olea wilsonii trees are popular and easy to grow shady evergreen trees. The beauty of this fruitless tree perfectly complements many landscapes. This variety of bare trees comes from the Manzanillo variety. Once rooted, it is drought tolerant and also resistant to fire and disease. They are multi-stemmed trees and are very impressive. Strength and adaptability allow Olea wilsonii trees to live for hundreds of years. The Olea wilsonii tree is sterile and does not produce pollen, which can exacerbate the condition of many allergy sufferers.

Due to its fruitless tidiness, its uses include coastal exposure, container, mass planting, rock garden, along pathways, as a focal point in the garden, near pools, etc.

Olea wilsonii Characteristics

Olea Wilsonii is a fruitless olive tree, a well-known, easy-to-grow tree that forms a cloudy canopy of small, narrow evergreen leaves. It is native to the Mediterranean region and is ideal for hot and arid conditions. It is versatile for landscapes and can be trained as a shady tree, low branching screen, or hedge. Olea wilsonii is a unique plant in the olive family; it is genuinely unproductive and does not require annual treatments to prevent the formation of olives. It is drought-resistant, fireproof, disease-resistant and durable. Olea Wilsonii, a fruitless olive tree, delivers much more than it needs.

Olea Wilsonii Characteristics, Size, Growth Rate, Care

Critical Characteristics of Olea Wilsonii

Some key characteristics of Olea wilsonii are mentioned below.

  • Olea wilsonii is an evergreen tree.
  • The main distinguishing feature is that it is a non-fruiting tree.
  • Its average mature height is about 25′ to 30′.
  • Its canopy spreads about 25’ to 30’ when fully matured.
  • It can also grow as a multi-trunk tree.
  • Its natural growth habitat is oval.
  • Olea wilsonii is considered a native to the Mediterranean region.
  • Foliage is Gray-Green.
  • The growing speed of Olea wilsonii is slow to moderate.
  • Total Sun exposure is required.
  • Once established, it requires occasional watering.
  • Some unique features include; attractive bark, desert conditions, drought-resistant, and seacoast conditions.

Olea wilsonii Size

Among the most famous trees, the Olea Wilsonii tree is a Mediterranean native customized for the landscapes of California and Arizona, where water is precious and heat is expected. Its habit of reduced fruit distinguishes this evergreen variety, sometimes passing years without a single olive. With a height and width of about 25 feet, it has a beautiful open shape, which appeals to landscape architects and contractors looking for a less densely foliated olive. As with all olive trees, the narrow green-gray leaves and uneven trunk give each olive tree a fantastic character and personality. Olea europaea “Wilsonii” loves full sun, low water and places in areas 8, 9, 11-24, H1 and H2 of Sunset Garden.

Olea wilsonii Growth Rate

Because the tree does not use energy to produce fruit, it grows slightly faster than a fruiting olive tree and can grow up to 30 feet in height and spread its canopy up to 30 feet in just 15 years.

Barren olives are always characteristic-growing trees, growing at a slow to medium speed and having an airy appearance. It has one or more trunks with narrow, gray-green foliage, with light green-silver foliage on the underside of the leaves.

In spring, the barren olives will bloom in clusters of white-yellow tubular flowers. The flowers are sterile, so if fruits appear, small, probably unviable olives can grow from them, time to time. However, they are minimal, and you will not notice them when they fall from the tree.

Olea wilsonii Care

Olea Wilsonii can thrive in most average, slightly alkaline, well-drained soils, but it is highly adaptable. Some care tips and bits of advice for your olea wilsonii plant are given below.

Watering Frequency

  • Water deeply and regularly during the first few growing seasons to establish an extensive root system. After settling, decrease the frequency because it can tolerate drought well.
  • Water more frequently in extreme heat or containers. Newly planted olive trees will require more water to establish.

Soil Condition

  • Light (sandy), medium (loamy), and heavy (clay) soils are acceptable. Olive trees prefer well-drained soil and even grow well in soil that is low in nutrients.
  • Easily adapts to hot and rocky places.
  • The suitable soil pH for Olea Wilsonii is acidic, neutral and basic (alkaline) soils.


  • They are hardy but protect from cold drying winds and severe frosts (below -5 ° C). Mature olive trees can tolerate short-term temperature drops as low as -8 ° C but ensure that the roots do not freeze.


  • Trim for spring/summer shape.


  • Full sun is desirable but tolerates partial shade.

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