Amber Gold Arborvitae thrives in well-drained soil with full sun exposure to maintain its vibrant golden color. Regular watering is essential, especially during dry spells, to keep the soil consistently moist but not waterlogged. Prune lightly in early spring to maintain its shape and encourage denser foliage growth. Fertilize in early spring with a balanced, slow-release fertilizer to promote healthy growth. Provide adequate space for air circulation to prevent overcrowding.