Can't miss one, then there's always another

There is always more, always

Always more to eat

I must eat to the last bite

Finish every tree

I start on one, I must eat it all

Eat every last one

But there’s always another, next to that one

I treat myself to one more

That’s when I must finish the tree

It can’t just miss one leaf

But there’s always another, next to that tree

So I have another treat

It’s hard but I can’t stand looking at it

Trees must be clean, either with or without leafs

Otherwise it’s ugly to stare at