Answer: Brown as in turning into wood is OK. Brown as in looking slimy means too much water, not enough drainage. If it's turning to wood, I would cut it down a bit to encourage more bushy growth, but that's probably a personal preference. I have always thought that as basil got woody the production decreased, so I try to keep them cut enough to prevent them from getting too woody. Pinch your plants back and you'll get lots more leaves.
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