understand my friend. all kinds of critters are attracted but most likely for small plants its rabbits or ground hogs , that type. bigger plants I've had whole patches wiped out in a single night by deer.
go to the garden store and ask for deer and rabbit repellent. the really small plants are best to have a wire dome that you can spray paint to match surrounding ground area and they'll by far be the best defense for getting your plants up big enough to where they can kind of withstand the smaller critters.
I've also heard human hair is good as well as rotten eggs which you don't necessarily put on the plants but around that area.
my personal agenda is the wire, then the repellent. if you're growing on other people's land be sure to not leave anything with your fingerprints on it around the area because if you get caught out there later it'lll be a lot tougher convincing them you were on a nature walk. In other words don't just burry the repellent jugs but take them home and dispose of properly
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Oh here's one other thing i have done when growing in an area very visible: build your "wire" protection dome out of sticker bushes .. lack of better words ... thorny long twigs or weeds that will allow sunlight thru.
then use twigs that are Y shaped to pin your pot down so that it lays below the level of the grasses that are growing around it.
luck bud!