A couple years ago I made a simple Black locust trellis to support two newly planted Coral honeysuckle vines (Lonicera sempervirens). I have read many times that Black locust is a long-lasting wood that does not decompose quickly and therefore it is used for fence posts. Well, my experience proved otherwise. The structure basically rotted and collapsed in about one year.
The next thing I tried was a simple fan-type trellis (plastic) purchased from a local box store. I even tried two of them — leaning against each other at the top and tied together to make a stronger structure. That did not work either as the wind repeatedly blew the trellises down (and the vines).
Now I’ve come up with a system I believe will withstand those gusty winds. I used 1/2″ PVC pipe to make two diagonal hoops. The PVC is screwed to four T-posts sunk into the ground. The two hoops are also screwed together at the top. I let this arrangement stand (with the older double-fan-shaped trellis leaning inside it) for the latest wind storms. It held up great.
Today, the sun was out and the temperature was high enough for me to paint the white PVC a lovely brown color. Then I used some Mountain laurel limbs to create interesting supports within the overall trellis shape. (I’ve noticed that Mountain laurel does not decompose very fast at all. And these limbs can be easily replaced in the future.) Lastly, I arranged the two Coral honeysuckle vines on their supports and tied them in place with stretchy tree tie tape.
I’m enjoying how this turned out and am looking forward to the vines filling out and blooming on their new supports.