Ds2 has grown 5 sunflowers from seed, four of which are not doing particularly well, but one was thriving. Noticed this morning that the thriving one was bent over about 6 inches from the top. On further investigation some %$£"& slug or snail has chomped through the stem and it is nearly severed. So...if I chop it off will it recover and still flower? Or can I kind of bandage it by binding the stem and if so what with? Ds2 was very upset when I said it might die.