Well I'll be a potted plant

For Mother's Day I was blessed with these two VERY well-made cards from the boys - they made them at school with some interesting craft resources!  During the week I noticed that Caleb had made an observation on a gift they had given me several Mother's Days ago...a vase with an apparently cute inscription of "If Mothers were flowers I'd pick you" reveals a sinister hidden message.  Well spotted Caleb - not the best Hallmark analogy then!