Most will, but they may need extra nutrients and take a while to see new growth. Most of the plants will side branch. I find it quicker & easier to just reseed and start a new batch. Also, I found that it is easier to do this inside than outside. They are seeded very thick, and didn't do as well outside. I seeded some arugula on Sunday and about 80% has germinated in 2 days. That's with a heat mat and under lights. They will be ready to snip by the weekend
