Hi.
I'd like to ask for some gardening advice - I've recently purchased some plants of mint that seem to be struggling to survive (cold country, not a lot of sun). Nonetheless, there seem to be some new baby leaves sprouting.

Today, upon checking on the leaves, I noticed something new... Aphids. A bunch of them.
I would like to deal with this infestation as swiftly as possible to prevent a full blown infestation (that would likely spread to my other plants), while also keeping the plant's future leaves edible.

Is garlic effective against them? Would you have something better to advise?

Thanks in advance.