Answer:
What is so delicate that saying its name breaks it?
What can be any size or shape and gets bigger the more you take from it?
What flies forever, rests never?
No matter how little or how much you use me, you change me every month. What am I?
It flavors your food and divides the year up. What is it?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.