my plants should be flowering like the rest but all new growth is yellowing and shriveled up.....dying. idk whats goin on cause the rest of them r just fine. the rest of the plant looks good tho..also the stems feel rubbery at the top not stiff like a healthy plant any help would be much appreaciated...thanks...i have a white widow and afgan kush and they r fine, the think diffrrent,blue mammoth,and northern lights are showing the problems, except for one of the think diffrents..