My basil looks healthy, but...
...but the top leaves look somewhat "mottled." There are splotches that are greenish-yellow, and I have no idea what might be causing that. The leaves are firm and not insect-eaten, but the color is off. Does anyone know what might be causing this? Thanks!
One simple cause of yellow leaves on basil is overwatering which doesn't allow the plant to absorb enough nutrition in its normal uptake cycle. That's too much rain if you're like us in CT.
In the ground or in a pot? Much more likely it will work things out if appropriately fertilized in the right climate and in the ground.