Posted: 08/08/2017 at 13:04
I assure you that even in the UK we can grow sage, rosemary, thyme, basil, parley outside in our gardens or windowboxes ............... they are all thriving in my garden in Norfolk. Even lemons are ok outside in most of the UK until the first frosts arrive, as long as they're given well drained soil.
Most herbs are happiest in poor soil, so stop fertilising them ... you're promoting soft growth which is encouraging the aphids.
I understand that without an outside space it's difficult ... but surely you have a brightly lit windowsill somewhere ... and somewhere less humid.