One thing to consider is that, because those beds are under the eaves, you will need to water them, even when it is raining
I would suggest a soaker hose or drip tape, separate from any system that you use for watering the lawn
You can put it on a timer if you don't want to have to think about it
If you like, you can connect a rain barrel to the soaker hose, so that when it rains your plants will get water even though they are under the roof!