A vertical tine tiller comprising: a power supply for generating rotational power; a transfer assembly operatively coupled with said power supply and including a first drive shaft rotatable about a horizontal axis, for transferring said rotational power from said power supply; a power head engaged with a second drive shaft of said transfer assembly, said power head including at least two power rods rotatable about separate vertical axes for transferring said rotational power from said transfer assembly at an angle thereto; a tine assembly operatively connected to each of said power rods, said tine assembly including a plurality of vertically aligned tines being rotatable about said vertical axis of said corresponding power rod, wherein the transfer assembly includes a first drive gear and a second drive gear that are meshingly engaged, wherein the second drive gear is attached at a distal end of the second drive shaft and a third drive gear is attached to an opposite distal end of the second drive shaft; wherein the power head includes a first transfer gear, operatively connected to a first drive rod and in meshing engagement with the third drive gear, characterized in that the power head further includes a second transfer gear, meshingly engaged with the third drive gear for transferring rotational power from the third drive gear to the second transfer gear, the second transfer gear being attached to a sheath that is positioned about an outer surface of the first drive rod adjacent its upper distal end; wherein the first and second transfer gears (40, 42) are configured to directly transfer rotational power to third and fourth transfer gears (50, 52), respectively, such that the third and fourth transfer gears (50, 52) rotate in opposite directions, wherein both transfer gears are configured to transfer rotational power from the power head to separate tine assemblies. a power supply for generating rotational power; a transfer assembly operatively coupled with said power supply and including a first drive shaft rotatable about a horizontal axis, for transferring said rotational power from said power supply; a power head engaged with a second drive shaft of said transfer assembly, said power head including at least two power rods rotatable about separate vertical axes for transferring said rotational power from said transfer assembly at an angle thereto; a tine assembly operatively connected to each of said power rods, said tine assembly including a plurality of vertically aligned tines being rotatable about said vertical axis of said corresponding power rod, wherein the transfer assembly includes a first drive gear and a second drive gear that are meshingly engaged, wherein the second drive gear is attached at a distal end of the second drive shaft and a third drive gear is attached to an opposite distal end of the second drive shaft; wherein the power head includes a first transfer gear, operatively connected to a first drive rod and in meshing engagement with the third drive gear, characterized in that the power head further includes a second transfer gear, meshingly engaged with the third drive gear for transferring rotational power from the third drive gear to the second transfer gear, the second transfer gear being attached to a sheath that is positioned about an outer surface of the first drive rod adjacent its upper distal end; wherein the first and second transfer gears (40, 42) are configured to directly transfer rotational power to third and fourth transfer gears (50, 52), respectively, such that the third and fourth transfer gears (50, 52) rotate in opposite directions, wherein both transfer gears are configured to transfer rotational power from the power head to separate tine assemblies.