Easily released Cord knot tying round a recycle box

Yep, the truckers hitch.

stop with the worrying rope is cheap.

Sounds like you need to do a proper conversion, but this would need hinges and strong catches mounted on the plastic. Brian

The best knot for that is the reef knot, which you can tie tightly on a corner and move. Alternatively, use a surgeon's knot, followed by an extra thumb knot, making the top half into a reef knot. The securest one is the constrictor knot, but that is a b*gg*r to undo. I use all of those and more.

Regards, Nick Maclaren.

Gaffer tape?

Waterproof duct tape will also work.

Isn't growing bamboo only a shade less risky than growing Japanese Knot Weed? Surely, if the roots are safely enclosed in a plastic tab, that's a very good thing?

Anyway, the boxes are tapered, so tie a loop round tightly with a good solid knot, then slide the loop off the taper to open it.

A fishermans knot . You wind one end several times around the other and then pass it through the bottom. You push on the turns to tighten and pull on them to loosen. See:

Yes, or no, or maybe (to choice). SOME bamboos are invasive, but others are not.

Regards, Nick Maclaren.

Indeed. See "Types of bamboo" here;

I grow Phyllostachys nigra ("Black" bamboo), and it's taken 7 years to double its clump-size. It hasn't spread.

Being a grass, bamboo can be killed by repeated application of glyphosate.

Not in my experience, though I use a very similar one when relevant, using a bowline rather than a loop knot, because that is less prone to jamming. The problem with all such hitches are that they are very bulky and catch on things - truckers use them because they are easy to haul taut, but you can get the knots I mentioned adequately taut for this purpose with experience.

Regards, Nick Maclaren.

Inserted missing OP

Perhaps you could explain, or even better show an example, so that we are talking about the same thing.

I was taught the truckers hitch 50 years ago & it needs an anchor point at both ends.

What's that arrangement called where you have *two* cord loops, and then twist them together by varying amounts according to the desired tension, using a stick between the two, which you rotate?

Spanish Windlass?

Same here in more than decade it hasn't really spread. Its' got a lot thicker in the middle of the clump but hasn't spread by more than a 6 inches in any direction at ground level. Now some shots are coming out at 45 degrees rather than vertical. I cut off shoots that don't end up reaching to the sky. For most of the time it also stayed at around 5 to