I have grown both types of Chamomile
Greek for ''earth apple'' , supposedly for its apple like scent
German : (Matricaria retutica)- an annual upright that reseeds nicely in my garden . The seeds need light to germinate.
Small seedlings will transplant well but plants more than a few inches tall most often die.
Roman : (Chamaemelum nobile ) Perennial ground cover
Considered the ''True'' chamomile Does not like hot dry weather.
I have used the flower heads as tea from both these plants . I collect a lot more from the German just because I always have this plant due to reseeding. I also use the tea to prevent damping off of most all my seedlings started in the house.
I find the Roman/ English harder to keep because it does not like hot dry , but if it is watered too much you loose the potency of the plant as an herb , next plant will grow in my flower bed and we will see.
My herb garden gets very little water and almost no soil amendments.
