Preparing a garden in a weed patch
General
northern California
I got a couple additional community garden plots over a month ago, and I've spent hours pulling weeds. Each plot is about 100-120 sq. ft.
One plot had bermuda grass, mostly around the edges. I pulled up the landscape fabric around the edges, dug down to get every piece of bermuda-grass root I could find, and then covered it all with cardboard and mulch. Inside the plot, some exploratory digging did not reveal any huge problems, but I've been pulling weeds as soon as I recognize them (at 1/4 inch high). I could not hold off planting, so I finally got a bunch of plants in the ground. Since I've started watering, I've found more bermuda grass and bindweed coming up. It's lightly mulched and when I get a chance I'll add more mulch.
The other plot had Rhamnus alaternus and some reverted-to-rootstock roses shadowing a third of the plot from one edge. It took a few hours to cut the buckthorn to the ground, and a few weeks to finally dig out the massive roots. It also had fennel roots that were surprisingly difficult to dig out. I thought I was done. But every time I dig a hole inside the plot, I run into bindweed roots, so I'm resigned to forking the whole plot to get out as much as I can before I plant. But I have cucumber and squash seedlings that are ready to plant out, and if I wait until I have time to fork the whole plot, they will become leggy and tangled.
Here's my question: is there a more effective way to deal with the weeds? Will I regret it if I just start planting in the second plot, without forking it first to remove bindweed roots? Or will it be more efficient to plant with newspaper and mulch, and address the weeds as they emerge?
Both the bermuda grass and the bindweed are perennials. Bermuda grass has massive networks of rhizomes, and the smallest piece of root left in the ground will grow into a new plant. Bindweed is not as aggressive, but its roots are persistent. You can pull all the bindweed you see one day, and come back in a day or two and see new ones sprouting. I've successfully outmulched them in paths, but in garden beds that are so thoroughly infested, I won't be able to do that if I want to grow anything this season, which I do.
I'm interested in hearing from anyone who has experience specifically with these weeds or with similar persistent perennial weeds. almost 11 years ago.