Roman Chamomile and German Chamomile are different. I prefer drinking German Chamomile. The Roman chamomile is a garden warrior. Once you sow the seeds, you'll always have them. In mid June the small plants have grown into massive plants loaded with 100's of flowers. They attract the hover fly - your garden's best friend to keep aphids at bay. If you have brassica plants like broccoli and brussel sprouts and kale, you will get aphids - little leaf sucking bugs. The hover fly will help eradicate the aphids by laying eggs that hatch into larvae that eat the aphids. This picture is Roman chamomile. Roman chamomile (Chamaemelum nobile (L.) All.) and the other is German chamomile (Matricaria recutita L.) - two different species of plant commonly called chamomile. Roman chamomile, formerly classified as Anthemis nobilis L., is a creeping, herbaceous perennial native to western Europe and North Africa.