Submersible water pump and drip irrigation

Wassup RIU. I am about to invest into some new equipment. I am looking for a good submersible water pump, and a drip irrigation set up for the following.

Flower room - 20 plants that recieve 3 gallons of water twice a week.

Any input is greatly appreciated.
Thanks in advance

submersible pumps at least the cheap chinese knockoffs that i have, are very reliable year in year out. they are rated in gallon/minute or hour, you roughly need like 5-6 gallon/minute type maximum I guess to get a real output of 3 gallons in a minute or so of running, after deducting for the height and obstacles.