Leaving marijuana unattended

A question from a fellow grower:

hello again Robert, I have a question and You may have an answer,
In early july, I will have 3 mature plants and 4 or so immature plants.growing in my grow room.
Since my Dad’s birthday party is happening several hundred milesfrom my grow room, I will not be able to tend to them.
What would be the best way, in Your mind, for leaving the immatureplants in the grow room for up to two weeks without care?
Is there a way to assure an every three day watering cycle when noone knows of the plants of or ever will know of them?

You can get a timer to turn the water on and off. You can use a drip system, set to water when you want.