I have notions of growing a couple of mixed pots of goodies such as lettuce, parsley and beans for the Newbie pigs this summer. Are nasturtiums or,any other edible for human type flowers safe to include the mix? Also, our cherry tree shedding its blossom, covering the grass with pretty pink petals. Are these harmful? By the way, gave the Newbies strawberries for the first time this week. They ate the green bits, abandoned the fruit and then shot back into the safety of their house!