Hey there, salt will salt the earth making growing difficult, but the closeness of the ocean is totally fine, it's when you get offshore/onshore storms and especially salt storms that's when you should be worried. So only when you start getting bad weather. I see you're growing these in pots, so when the bad weather comes just bring the pots inside for however long you need to be worried. Just maintain the light schedule with any household light and pray that it's over soon. Either that or any kind of green house that's covered. Hope this helps ! 🚀