Olive trees have characteristics that can make them attractive ornamentals. They have pleasant gray-green foliage, a gnarled trunk and willowy young growth, but these characteristics may be hampered by unpleasant and messy fruit drop. However, the development or discovery of fruitless varieties has addressed this issue.
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The Wilsonii variety of fruitless olive was discovered in a Manzanillo olive grove. This variety has a slow to moderate growth rate, eventually reaching a height and spread of 25 feet. The Wilsonii will occasionally produce fruit but in smaller quantities than standards. This gray-green tree is pest free, drought tolerant, thornless, long-lived and grows well in low elevations.
The Swan Hill olive is the most popular variety of fruitless olive tree. It can live for more than 150 years, has light gray, scaly bark and ovate gray-green leaves. At maturity, this variety can reach 35 feet in height but is drought intolerant.
The Majestic Beauty variety has soft gray-green, willowy foliage and features a smooth gray trunk that gnarls with age. The Majestic Beauty is typically smaller than the standard olive, reaching only 20 to 30 feet in height.