Home Depot Garden Club Free Vigoro Annuals when you buy 2 Lina Zussino Published on May 16th, 2014 Coupons shares Home Depot Canada Garden club coupon – Buy any two Vigoro Annuals and get the third one free. Coupon valid from Friday May 16, to Wednesday May 21, 2014. While quantities last. Limit of 2 free Vigoro Annuals per customer. To print Home Depot Garden club coupon for a free Vigoro Annual when you buy 2 click here.