At this time of year I am getting my bamboo canes ready for my runner beans and as usual, every year I have to buy more to make up for the reduced length due to the ends rotting. They only seem to last about 2 years full length before I have to remove a foot or so to make them strong enough to push into the ground. Very annoying.
So my question is, does anyone have a tried and tested remedy for prolonging their life? I usually remove them during my autumn tidy up as soon as the crop has finished so it's not as if they are left in the ground over wet winters. This year I thought I might buy the longest length I can find so that if I do have to chop them, they would last a bit longer. I found the green painted metal ones I bought for my sweet peas a few years ago were a complete waste of money as the coating peeled off in no time at all.
Does anyone perhaps dip them in a solution or paint them or something?