"....... read the label ...."

Not always possible, I left a bottle outside one night and the label was
almost removed by slugs, luckily I knew the product, also have growth
retardant with instructions on separate leaflet held around the bottles neck
by a rubber band. easily lost as the contents should last me around 10
years.
Now I always write quantity req. on container with a felt tip pen.

--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk