I went online to see if anyone could offer any reasons for this, and read a few:
- They may be getting too much sun. This could be the case, since I moved the plants to the poolside, which gets lots and lots of strong sun.
- They may need some nitrogen and phosphorus. I decided to use a fertilizer for herbs called Garden-Tone, and I sprinkled about a tablespoon around the perimeter of the pot.
- It could be due to the fact that I just transplanted them, and the plants are in recovery-mode.
- It could be due to too much water (although I doubt this is the reason).