How can I keep grass from growing up through my gravel (with sand base) rock garden without using poisons?

2 Responses to “How can I keep grass from growing up through my gravel (with sand base) rock garden without using poisons?”

1. Rover says:

   December 17, 2009 at 7:06 pm

   You can make a poison-free, earth friendly herbicide using salt, vinegar and soap. You’ll find different variations of the recipe, like here http://www.therenewableplanet.com/blogs/the_daily_green/archive/2007/05/24/make-your-own-eco-friendly-hebicide.aspx
   References :
2. Kelly says:

   December 17, 2009 at 7:13 pm

   More gravel. More sand. If no light shines down to give them energy, then they can’t grow.
   References :