I have used cardboard and newspaper in the past but I found termites liked it and it looked terrible where it became exposed. Not knowing what chemicals went in to the manufacture, or into the printing inks, finally put me off it. Don't use it any more. If plantings are fairly dense weeds become very leggy and are easy to pull out. Other than that, I regard weeds as a temporary nutrient storage facility.
Tee, that's a very nice Colocasia 'Tea Cups'.
