How to Fertilize sweet gum?
Balanced perennial feed every four weeks from spring through summer

sweet gum · Liquidambar styraciflua
Also known as: American red gum; American sweet gum; bilsted; copalm balsam; red gum; satin walnut
Grow in moist but well-drained neutral to acid, moderately fertile soil, in full sun or partial shade. Suitable for woodlands or as a specimen tree. Full sun brings out the best autumn colour - see tree cultivation
Balanced perennial feed every four weeks from spring through summer