Don't chop. Water them before you leave and then just let them naturally die and dry in the pots.
If you must chop then I'd put them in the freezer and dry them when you return.
Best of luck.
y wud u do that just setup an irragation system if uni how to do it one waste one nutes simple
so with the freezing thing /plants cell are filled with water /you might cause the cell walls to burst and end up with a sogging mess like when you put lettce in the freezer it just wilts i would not recomed doing this ...on the other hand i leave mine for 14 days to dry on the line if your leaving for 15 you should be fine just hanging them
so with the freezing thing /plants cell are filled with water /you might cause the cell walls to burst and end up with a sogging mess like when you put lettce in the freezer it just wilts i would not recomed doing this ...on the other hand i leave mine for 14 days to dry on the line if your leaving for 15 you should be fine just hanging them