 It not only won't hurt anything, it would be good to do, and I tell you, in your case, the best way to do it would not be to go to the trouble to load up a sprayer and spray the foliage. If you have a watering can, if you don't, you ought to probably get one that has a breaker on the end of it and just mix the cornmeal tea water and just pour the cornmeal over the top of the plant, covering the foliage and soaking the