For best results with Acacia Gaulois Astier (Mimosa) garden trees plant them in coastal and relatively mild parts of the UK, alternatively, they make a wonderful specimen tree for a large unheated conservatory, orangery or greenhouse in cold areas. If too exposed in severe Winters, they can be at risk of being damaged. They simply require dead heading and a light trim after flowering to retain the symmetry of the plant (they do not take too kindly to hard pruning, and generally do not need it). They require is moderately fertile, moist but well-drained soil until established, when they will tolerate slightly drier soil. They will not thrive in soil that becomes waterlogged so add grit and well-rotted organic matter to clay soils before planting.
How to grow Acacia Gaulois Astier
Position: Full sun
Foliage: Evergreen
Soil and site: Moist, well drained
Flowering time: Winter to Spring
Growth rate: Slow to Moderate
Ultimate height and spread: 6 metres, spread to 5 metres
Hardiness: Hardy to -8
Aftercare: Water well until established, avoiding soil becoming waterlogged. Deadhead flowers and trim lightly after flowering if necessary to maintain shape
