The annuums in your photos will flower/fruit early no matter what long/lat/climate you are in. A large pod on a 6" plant isn't productive or attractive. Basic issues you may encounter that northerners may not..... More bugs,rain,longer season needing more food. With your lack of free time I would suggest using granular fertilizer,set it and forget it. I am on a tight schedule with traveling and other hobbies and it works for me. My free time is spent taking pics,and picking pods,not mixing ferts.