May 25, 2011 9:38 AM Subscribe
We have the holy trinity of major weed problems: Bermudagrass, Oxalis, Wild Blackberry. What should we do?
posted by otherwordlyglow to Home & Garden (26 answers total) 4 users marked this as a favorite
We moved into our San Francisco house in January and inherited a large, very unkempt backyard. It clearly has not been maintained for many years. We're not expert gardeners and are clearly outmatched by the weeds.
It's terraced up on about 6 levels from the back of the house up the hill We've weeded (by hand) hundreds of gallons of weeds but still have much to do and are trying to avoid using herbicides but are not completely opposed to them. The oxalis is pretty benign and though it's a pain to weed, it's not quite as obnoxious as the other two main problems. After pulling 10-foot long, inch-thick, thorny vines out of the trees, the wild blackberry (Himalaya Berry?) is still popping up all over and we've been digging it up as far down as we can but I'm sure there's still more to come. Our neighbors to the back are infested with it so I know it's just a matter of time.
The Bermudagrass is particularly awful and there is a tangled mat of runners several inches thick in places AND there's landscape/weed cloth underneath a lot of it (clearly not doing its job). I pulled up some of the weed cloth and there's MORE runners underneath it. Do we just have to scrape off a foot of soil and start all over? How do we eradicate the Bermudagrass?
Luckily, there's almost nothing in the yard that's worth keeping so wholesale destruction is fine. No fine-grain weeding is really required yet. Another difficulty is that the backyard is only accessible through the house (it's attached on both sides to the neighbors) by way of a standard-sized door so any equipment has to be small enough to get through there. A rototiller would fit but is that going to make the problem worse? Do we just need to pour poison on our yard? I don't mind hand-weeding if it's really going to help.