I purchased a Lavender plant (Melissa) is Sequim, Wa. I am now in Tillamock and I have noticed that the leaves are turning yellow and are spotty? What can I do to save this plant? Thank you.
This could be a watering issue or even a fungus.
Check watering and increase if it is dry.
If to wet this can cause root rot.
Treat with Neem Oil.
Here are some links for you with more information.