Some sort of guttering?

I want to use the patch of garden on this side of our shed to put some containers for veggies. However, the shed roof slants this way so all rainwater runs off onto this patch. How can I easily add some type of drainage.... *easily* being the word as it's me doing it!

 

Fit some guttering, a downpipe and water butt. Or if you don't have space for a water butt dig a soak-away. Fitting guttering isn't difficult.

There's a leaflet about how to fix rainwater goods here >
http://www.wickes.co.uk/pcat/60guttering

 

thanks Dave