Common name: Sweet Gum.
Native: Eastern USA.
Size and spread (10 years): 5m x 3m
Treatment required: Requires a pre chill if spring sown.
Seeds / kg: 166,500 73% viable
Ideal sowing period: Autumn / Spring.
Soil conditions: Plant in any deep well drained soil to get the best colours, not chalk
Planting instructions: Grows to be a lovely even shape if given space
Mature height: 25m x 12m
leaf and seed head pic courtesy of Mbzt, CC BY-SA 4.0 , via Wikimedia Commons