Keep the weeds down for over a year in a rock garden by using white vinegar. It may even last longer than a year. I no longer have weeds in my white rock. It kills everything, so keep it away from the lawn and flowers.
Do you just spray it on there?? And if weeds are already there it will kill them also right??? Thanks for a great tip. Now that it's spring I've also got to get out there and get the leaves out from up next to the house in the corner of my white rocks. don't you just hate that????