Several of my bean vines have passed the 10 foot mark and are still growing. My tomatoes are on their way and are about 7 foot tall at the moment.
How? A trellis based on conduit!
I picked up some 1/2″ by 10′ rebar and cut it down between 2-4 feet each. I went with two 3-footers and a 4 footer to account for winds that commonly blow down trees around here.
Pounded that rebar halfway into the ground to anchor the conduit and slipped a 1/2″ by 10 stick of EMT conduit over the rebar. That is where my trellis gets its 10′ height.
10′ away, I do the same with the rebar and conduit reaching for the sky. I used a couple of 90 degree fittings and put a 10′ stick of conduit between them across the top.
Tomatoes get a single string of jute twine that serpentines around the tomato vine. As the tomato plant grows, I wrap the top of the plant around the twine. Friction holds the tomato vine to the twine.
The same rebar/conduit frame is used for beans, but the beans get more of a netting that I make with a nylon string. This netting has holes about a square foot and the beans work themselves up the webbing on their own.
I am taking about indeterminate tomatoes and pole beans, which grow ‘forever’, as opposed to determinate tomatoes and bush beans, neither of which grow like vines.
Pics coming soon…