Hi bullet08,
Wishing you a fast recovery .
Get one of the scouts team to water your trees ... If they fail, you could load their backpack with stones on next promenade .
Or with a bag of one kilogram of salt - tell them it is for cooking :) and you really need that many salt !
Well, forget about that you're again the lash, it seems. So just setup a drip system to water the trees - that's more modern and probably efficient ...