nice i would think about protecting them from bugs somehow, keeping an organic theem look for sprays that are omri listed or just look for bugs and smush 'em. i had problems with caterpillers last year -corn worms i think is what they are but i had to spray with safers brands omri listed stuff. some people think organic means not spraying at all, some people have to spray just to get the job done.
their young so you have time to research dif sprays like perithrins or insect killing soaps, id go with safers brand cuz ive used them in the past -you dont have to go full strength with the directions just till its strong enough too kill, when it says 5tbs per gallon id go with around 4 and adjust if you need. only apply foliars at night soo that theirs no residue to burn the leafs once the sun is on them, early in the morning is good too just not right befor the sun is on them.