The last time I did this (leave the plants unattended) was for a 3 week holiday and the results were catastrophic and nothing survived except for the hardy indian borage. Came back to a balcony full of dry leaves which was a chore to clean up.
This time it was only 2 weeks and I had some water bottles with spikes to slow drip the plants.
Still the results was still a disappointment.
took out my phone to record this..
Mints all died. Left a few cuban oregano.
Basils all dried up.
Some surviving basils.
Some dried up okras and basil.
I guess the biggest loss was my 2 plants of tomatoes (1 month old) and chillies.
The water bottles with spikes not all worked and a few were full of water. The ones that worked saved the other plants.
Next time, will try to invest in a water timer.