We aren't certain this is a basil (even a lemon-flavored type), so since we can't positively ID the plant, we do not recommend consuming it. If you're curious and want to wait for it to flower (since flowers are very important features with plant ID), you can send us another photo when it blooms and we'll try again to see if we recognize it. If you want to keep them until blooming and they're currently in the way of other plantings, you can transfer the mystery plants into their own container and watch their development there.

Miri