Thuja Smaragd

• Thuja Smaragd originates from North America and belongs to the cypress family, prized for its naturally compact growth habit.
• This evergreen conifer maintains its emerald-green colour throughout winter, unlike many conifers that bronze in cold weather.
• Growth habit is naturally columnar and dense, reaching 3-4 metres tall but staying narrow at 1-1.5 metres wide.
• Popular choice for formal hedging, privacy screening, and accent planting due to its consistent shape and low maintenance requirements.
• Extremely hardy once established, tolerating frost, drought, and various soil conditions across Australian climate zones.

• Water weekly during first year, then reduce to monthly deep watering once established. Check soil moisture before watering.
• Position in full sun to partial shade with good air circulation. Avoid heavily shaded areas which cause sparse growth.
• Plant in well-draining soil, adding compost or aged manure to heavy clay soils for better drainage.
• Feed with slow-release fertiliser in early spring and autumn. Avoid high-nitrogen fertilisers which promote soft growth.
• Prune lightly in late winter if shaping is needed, though natural form rarely requires trimming.
• Mulch around base to retain moisture and suppress weeds, keeping mulch away from trunk.

• Plant in full sun to partial shade for best foliage colour and compact growth habit. Morning sun with afternoon protection works well in hot climates.
• Water deeply but infrequently, allowing soil to dry between waterings. Established plants are quite drought tolerant.
• Maintain consistent moisture during the first growing season to establish strong root systems.
• Apply slow-release fertiliser in spring and again in early autumn for optimal growth.
• Light pruning in late winter helps maintain shape, though Thuja Smaragd naturally grows in perfect columnar form.

• Spider mites can cause yellowing foliage during hot, dry conditions. Increase humidity around the plant and apply horticultural oil spray.
• Scale insects may attach to branches, causing weakened growth. Remove manually or treat with systemic insecticide.
• Root rot occurs from overwatering or poor drainage. Ensure well-draining soil and reduce watering frequency.
• Bagworm caterpillars can defoliate branches if left untreated. Hand-pick bags or apply Bacillus thuringiensis spray.
• Browning foliage may indicate salt damage from coastal conditions. Rinse foliage regularly with fresh water.