A tree in a 15 gallon pot roughly weighs about 100 lbs, and is between 6- to 8-feet tall. A single individual in good physical condition should be able to plant it by himself.
A tree in a 30 gallon pot roughly weighs between 180 to 200 lbs, and is between 8- to 10-feet tall. Two individuals in good physical condition should be able to plant it.
We recommend purchasing our $30.00 tree planting kit, which is suitable for use when planting either a 15- or 30-gallon container tree. It includes everything we would use if we were planting for you: stakes, chain, and root stimulator.