I've laid a tarp or heavy plastic down over a border of wood. Placed the pots on the tarp, then fill it up with water. Mosquitoes can be a problem though. But you're away. They will need a goid drink from the top when you get home.
Life is short, Break the rules, Forgive quickly, Kiss slowly, Love Truly, Laugh
uncontrollably, And never regret anything that made you Smile.
They will need a goid drink from the top when you get home. 
