Trellis plants should ramp up in production the longer they have been alive. Most of them are vining or bushing plants, and they just get bigger IRL. A first harvest from a cucumber vine pales in comparison to what you'll get from it a month later(so long as its healthy). This would give a big improvement to our production & reduce the amount we need overall. Idc about exact numbers for the amounts that should be harvested, but it should become pretty substantial. 10+ or most things after like 3 or 4 harvest
Alternatively, vining plants should spread to adjacent empty trelli and those can also be harvested. I think that could be very strange and weird with how closely we place trellis though, so eh.