Check your email.
I received a coupon this morning for $5 OFF $50 OR
$10 OFF $100
PURCHASES IN LAWN & GARDEN AND HOLIDAY DECOR.
Seems to be for one time only use as it has a long code attached to it.
This offer is valid through 12/20/2017. This offer is valid and redeemable for a $5 discount off of $50 or $10 discount off of $100 or more on a single receipt in-store Lawn & Garden and Holiday Decor purchases at all U.S. The Home Depot® stores. LIMIT one coupon per customer. Limited to max $10 discount per transaction. Present to cashier at time of purchase to receive your discount. This offer cannot be combined with any other discount, offer, promotion or special incentive program and is not valid on: (a) the purchase of The Home Depot Gift Cards or Certificates or (b) prior purchases. Do not send with/as payment on any Home Depot credit account. Void if sold, copied or transferred and where prohibited. See store for further details.