Bamboo control idea & variety suggestions
IÂve been reading up on bamboo, rhizome barriers, raised beds, rhizome pruning and clumping versus running and all that I can find. I havenÂt yet come across anything on what IÂm considering.
I have a 50ft fence line between me and my neighbor. I want to cultivate a nice thick minimum of 6 foot high bamboo screen along this length. IÂm in zone 6.
The soil within 2-3 feet around the fence line is too difficult to trench because of dense tree roots along most of the run. I only need to block invasive growth towards my neighborÂs side. Any spread towards my side I feel would be manageable through mowing and trench pruning. I think I could create a shallow (6 to 12 inches) trench 3 to 5 feet out from my side of the fence line for seasonal rhizome pruning.
I thought I might put in an, 18inch high wood wall using PT 2x6Âs and 4x4 stakes along three sides of the 50ft run. Kind of a three sided 50ft long, 1.5ft high, 4 ft wide raised bed. I would line the inside of this walled area with 30inch 60mil HDPE. I would then back fill the walled area with soil and compost, sloping downwards towards the open side and plant various bamboo rhizomes or plants.
Can I get some thoughts on whether encouraging growth on one side only will effectively restrain invasive growth into my neighborÂs yard? In other words, will using a raised bed HDPE barrier on the one side and an open side on the other create a "path of least resistance" effectively controlling bamboo spreading?
Also, given my zone 6 hardiness needs and my goal of creating a dense screen (at least 6ft high), what varieties can be recommended?
Thanks in advance