This trellis was built nearly 6 years ago, along with the planting of the wisteria. It took about 4 years for the wisteria to finally start budding. That first year it budded, it almost didn't because I almost ripped it out thinking it was defunct. Fortunately, my neighbor informed me these take awhile to take hold. Hopefully, it'll go nuts this spring because I'm getting tired of looking at that bare trellis.