I use a drip system fit outdoors that I think is a game changer for anyone hand watering their outdoors plants.
The benefits of this system are:
You can water the plants with aggregator amount of water delivered over a longer time allowing good localized soaking of soil rather than run off.
You can water more water in a short period of time.
You can add nutrients and minerals to your watering schedule (I ALWAYS feed until it’s time to flush), thus ensuring your plant always has all that nutrients they require.
You don’t splash soil and all the stuff in the soil on the stalks of your plants, thus reducing the transmission of pathogens from soil to plant. Mind you, this is more of an issue with tomatoes (I use the same system on the tomatoes).
Components:
60 gallon / 200L food grade plastic drum.
Tank fitting (coupling with rubber sleeve) connected to a 1/2" tube.
3 shut off valves and a tee connecting allow me to have 2 separate circuits (cannabis and vegetables).
The cannabis line is an old 3/4" garden hose. At each plant (except the last), there is a tee, with another shutoff valve. After tech valve, there is a 1/2" to 1/8" cross tee (2 x 1/2" connections and 2 x 1/8" connections), and then we capped off.
Each plant has four 1/8" lines terminated with a dripper.
This system can be scaled up
The tank with gauge I made:
The cannabis/vegetable garden split:
The connection to each plant:
The “cross tees” and end plug:
The drippers:
The plants:
The two in pots are Cheesequake, about 5 feet tall. Stalks are 3 fingers wide:
This Rockstar of 7’6" tall:
This Nicole’s x Banana O G is 8’ 7" tall and it still growing!
Its stalk is 4 fingers wide:
My tomatoes like this system, and so far they are ok with their cannabis neighbours:
2/3 of my security system 
:
My pest control:
Last year at harvest (the one on the right was 9 feet 7 inches tall and yields 3.5 pounds of dried and trimmed bud):
