I have been attempting to grow chamomile. I had the dickens of a time getting them to grow. My brother told me to use a cloche - ( I know it is spelled wrong and I am probably pronouncing it wrong too, but they are mini greenhouses) and sure enough. Under the mini greenhouse the sprouts are getting quite big, where as before, they would only break the surface and wither away. It isn't even that hot here right now. It's somewhere in the mid 70's.
This is a peek straight inside the cloche.