Lifting equipment for ~150kg steel planter (270l)

Hi there, You could use a Genie Lift, commonly hired at the usual plant hire outlets, like Hire Station. A Genie lift is a manual forklift, with a hand winch and forks, like a forklift truck. Use the forks to lift one end, place a bit of timber under it. Then do the same with the other end, so it's supported off the ground by the timber each end. Then you can get the forks in the middle side to lift the whole thing. Genie lifts are on wheels, so you can move it about. If the planter material is old and brittle, tighten a couple of ratchet straps around it horizontally to keep it supported and intact. If the roots aren't poking through the bottom of the planter, then you're good to move the whole lot in one go. If there's lots of roots poking out, then chop them neatly, move the planter, keep well watered for weeks and cut off excess foliage to account for the loss in root mass. This method would disturb the plants way less than digging them out and re-planting. The best method is to wait until winter, when the plants are dormant. Thankfully, that's still a long time away! Hope that helps Sam