Upvote:1
I can't comment on the post but do you not have automatic watering systems for the flowers over there? Such a system would obviously be too expensive for one trip but it sounds like this is someone who is often away.
Here such things are the norm. There's a timer in the garage wired to valves buried in the yard (they're inside a box with a snap-on cover so they're easy to get to if need be) and then pipes feeding the locations that water is wanted. It's fully automatic other than changing the settings seasonally.