My thyme seedlings seem to have small spots on some leaves, while some are completely brown/purple. Not sure if this is alternaria blight or some other pest. I have them growing in garden soil and are placed on my windowsill where they get full sun and good air circulation. What can I do to treat this? I have neem oil if that is effective/harmless to thyme seedlings.
First thing, location is important- where are you? My lemon thyme is abt to succumb to heat and humidity, and the fact too many other volunteers are crowding it. I find it loves 40/70* and dry humidity wants water but doesn't like it's feet wet.
So many roads to take, choices to make, and laughs to share!