I use your standard jute twine for my first years, laced two ropes together now that the buds are showing, the 4 plants weigh around 60 pounds and have broken the twine twice. That looks like the cheapo rope you get from harbor freight, I'll probably be using that next year, wouldn't recommend the cheap 8 pound breaking strength twine you pick up at ace. It's not to fun 10 feet up in on a ladder balancing plants, tying knots, and trying to figure out how to make you rope stronger when it's to late. Next year I'm going with something that on the overkill side of things.