Eucalyptus gunnii 'France Blue' is a striking evergreen tree known for its attractive blue-gray foliage and aromatic properties. 

Height/Spread: Eucalyptus gunnii 'France Blue' typically reaches a height of 10-15 meters (30-50 feet) with a spread of 4-8 meters (12-26 feet), making it a medium-sized tree suitable for larger gardens or landscapes.

Position: This eucalyptus variety thrives in a sunny position that receives full sunlight. It prefers a sheltered spot, especially in colder regions, to protect it from harsh winds and frost.

Soil: 'France Blue' prefers well-draining soil that is moderately fertile and has a neutral to slightly acidic pH. It can tolerate a wide range of soil types but does best in loamy or sandy soil.

Flowering Season: While 'France Blue' is primarily grown for its foliage, it produces small white flowers in clusters during the summer months. The flowers are not particularly showy but attract bees and other pollinators.

Uses: This eucalyptus variety has multiple uses in the garden. It is often planted as an ornamental tree for its striking foliage and elegant form. 'France Blue' is also valued for its essential oils, which are used in aromatherapy and herbal remedies. In addition, the foliage can be harvested for flower arrangements and crafts.