These are the horizontal trellises I made 10 years ago. As they grow, I add another tier.
After having much disease attack my tomato plants cooped up in round cages, I decided they needed more space for air flow. I reasoned the since they are vines, they need to sprawl. So I came up with this solution. Now I can use a pump sprayer on top and under the leaves with ease. Also finding and picking them is much easier.
I didn't use treated lumber, so over the years they have rotted, and the wire mesh is quite rusty.
So this year I intend to reinvent them using PVC pipes, and plastic snow fencing. The initial cost is a bit hefty, but I grow such huge plants that produce heavily, so I don't need more than 4. :
