I have a 10' tall, 15 year old Dracaena draco plant in a 25 gallon pot but it still has just a single stem and head. Photos I have seen in books on tropical trees show this as a spreading, many branched tree. Can I induce this to take on a multi-branched form by simply topping the tree? Note: this is not the more common, smaller plant Draceana marginata. This is a tree dracaena the one known as "Dragon's Blood" or "Canary Island Dragon Tree".
Thanks for the help!