amaze, a maze

Amaze or amaze ( one word ) means to surprise or astonish--
Try this at home! Amaze your friends!
It never ceases to amaze me...

A maze or a maze ( two words ) means one ( a ) puzzle made of paths or passages, literally or figuratively--
They built a maze out of the leftover Christmas trees. Everyone had fun trying to go through it.
In the fall we'll make a maze out of that cornfield.
He was lost in a maze of sentimental memories, and couldn't remember how he got so confused.

Now that you know that, you can say--
"The difficulty of getting through a maze made of low shrubs will amaze you."

Note--not to be confused with "maize" ( rhymes with maze ), meaning corn--
What we call "corn" in America is often called "maize" in Europe, to avoid confusion.