how to get sago to have trunk
How do you make a sago palm grow taller?
Sagos are at best slow growers - like 1' in 8-10 years. That's under optimum conditions. Less than optimum conditions - not enough sun, not enough drainage, too much cold, pH off - and growth is even slower. So the only way to have them grow taller is to give them what they need and be patient. This article has great information on getting the most out of your sago: https://www.gardeningknowhow.com/ornamental/trees/sago-palm/prune-sago-palm.htm