General   (General discussion, talk about anything.)

You can get a Roundup gel applicator to use close to other plants.

Just don't get any in contact with wanted plants.

It is systemic and absorbed through foliage surfaces (or in this case smashed-up foliage). Microbial activity in soil quickly breaks it down. I have not known it to affect other close-by plants through the soil.

Tesco usually has it.