Planting Trees

[kumarsah]

As to the size of holes for trees, are there recommended dimensions ('x' feet deep, and 'y' feet wide) - for big trees(i.e. 30 ft canopy), med size (15 ft canopy) and small (i.e. palm trees etc.).

Electric jack hammers, how does one hire people to do the work, you mentioned that you can rent the hammer at the rental place, how do you find/contract for the guys that will do the work and are reliable? Is it recommended to hire the worker per day? per hour, etc? or are there companies that specifically contract to do the job?

Thank you.

Kumarsah