I have a new house. I planted a garden, 5 feet by 40 feet. Last year, I sprayed the site with roundup, to kill all the grass and weeds. Then in the spring, planted my crops. I have corn, broccoli, tomatoes, etc. Now, it is being overtaken by what I've now identified on the internet as Purslane. And the Purslane is growing faster than the garden plants. So far as I can tell, it hasn't harmed the vegetables at all yet, but every time I pull around the vegetables, within a week the Purslane is back. My first thought was to wait until I harvest my vegetables in the fall, and then spray the area again. The only thing that concerns me, is I don't want to keep spraying an area that I'm going to be planting in, especially since I want to eat the vegetables. Other that constantly fighting this plant, is there a better way to get rid of it without poisoning the edibles I want to plant? If it stayed flat on the ground, and didn't bother the other plants, I wouldn't even care, but now it's growing upward. I'm attaching a picture that I took of it, outside the main garden area, that I used to identify it.
Hand pulling is the best way to remove these weeds.
Using a preemergent in the spring is recommended.