We have a vacation rental house in Southeastern AZ and it must look neat at all times. This product is it! We have a bad weed called Pig Weed that grows 7 foot tall with a thick staff. Using this product, we don't see it coming up where we have applied it. Woo Hoo. We also have a 1000 ft rock driveway which is free & clear of all weeds for the 1st time ever! I didn't even have to reapply in July. Make sure you put this down the end of March/ April to start off the season! Thank you for selling this great weed killer!