Im planting seeds i germinated in a tray and they are close together. I put six in about an inch apart. This works for the tomatoes and peppers im growing but will it work for weed. I will be transplanting them outside in under 2 weeks.
The roots will bind together in less than 2 weeks. Before then, put them in their own pots/cups. If they are kept together, I'm pretty sure that the strongest one will kill the others. Stay high, and good luck!