March 17 -- is that the last day after which McD's puts back away ingredients?

 Yes

after March 18 

those who order

and savor the

Shamrock Shake at McDonald's

as a Feb. - March limited

time drink - treat

will no longer see it on

the MENU BOARD . . .

/ while supplies last

_______________
Shamrock Shakes are

only sold last week of Feb. through

some of March

_______________

get yours only up to March 18