Chamomile

"Chamomile" sold at a nursery or on a seed rack is genuinely two different plants, not one species with cultivar variation. German chamomile (Matricaria chamomilla) is an upright annual that reseeds itself readily once established, often to the point of becoming a self-sustaining patch without replanting. Roman chamomile (Chamaemelum nobile) is a low, spreading perennial, sometimes used as a fragrant, foot-tolerant lawn substitute in small areas, and it behaves in the garden much more like a groundcover than an upright annual herb.

Same Daisy-Like Flower, Different Life Cycle

Both plants share the small, daisy-like white-and-yellow flowers most people associate with chamomile, and both are used for the same purpose - dried flower heads steeped for tea - but they arrive at that flower on entirely different schedules. German chamomile flowers and sets seed within a single season and dies, replaced by its own volunteer seedlings the following year if any flowers were left to mature; Roman chamomile persists as the same plant for years, spreading slowly outward.

A Long History Behind the Tea, With Real Limits on What's Proven

Chamomile tea has been used across many cultures for centuries as a mild, calming evening drink, and some modern research has looked at compounds in the flower with genuine interest - but the tea's traditional reputation for relaxation is considerably older and broader than the current scientific evidence specifically supports, and we'd rather say that honestly than overstate what's been proven. It's a long-standing, low-risk tradition, not a medically established treatment.

Harvesting Without Losing the Reseeding Cycle

German chamomile flowers are picked as they open, and picking regularly actually encourages more blooms over a longer window - the same deadheading logic that keeps many flowering annuals productive. Gardeners who want the plant to reseed itself for next year deliberately leave a portion of the later flowers unpicked so they mature and drop seed before frost.

Telling Them Apart When the Label Doesn't Say

Beyond growth habit, there's a reliable botanical test if a plant's identity is unclear: slice a flower head in half. German chamomile's central disc is hollow and conical inside; Roman chamomile's is solid. It's a small detail, but it's the one botanists actually use to settle the question when the two are confused, which happens often enough since seed packets and nursery tags aren't always precise about which species is inside.

The "Plant's Physician" Reputation

Chamomile carries an old companion-planting nickname in some permaculture and organic-gardening circles - "the plant's physician" - based on a folk belief that sickly neighboring plants perk up when chamomile is nearby. This is squarely traditional lore rather than anything with controlled evidence behind it, and it's a considerably broader, vaguer claim than the specific pollinator-draw benefit chamomile's flowers genuinely provide; we're including it here because it's a widely repeated claim, not because it's been shown to hold up.

Companions: Broccoli and Cabbage

Chamomile's small, abundant flowers are a genuine pollinator draw, which is the basis for pairing it near broccoli and cabbage - useful for any nearby crop that benefits from more pollinator traffic in the bed, though the specific claim that it improves those particular crops' health or flavor (a common companion-planting assertion) goes beyond what's actually been shown and is rated as mixed evidence rather than settled.