Chamomile, Matricaria chamomilla

Matricaria chamomilla is an annual in the daisy family.

Matricaria chamomilla is one of several different species in the daisy family (Asteraceae) that have the common name chamomile. Also known as German chamomile or wild chamomile, it is one of two species commonly used for making the tisane (herbal infusion) called chamomile tea. M. chamomilla (syn. Matricaria recutita and Chamomilla recutita) is an annual native to southern and eastern Europe and western Asia that has been widely introduced in temperate areas elsewhere where it thrives in disturbed areas, meadows and fields. It is closely related to pineapple weed, M. discoidea (sometimes also called wild chamomile), a common weed of roadsides and gardens with edible flowers that exudes a pineapple aroma when crushed. It is easy to distinguish from M. chamomilla when in flower because the inflorescences lack ray flowers (the daisy “petals”).

Pineappleweed, Matricaria discoidea, lacks white ray flowers.

The shorter Roman, English or garden chamomile, Chamaemelum nobile, is a similar-looking perennial from western Europe hardy in zones 4-9. This evergreen species spreads by creeping, rooting stems and can be aggressive in good conditions. It is used less frequently since it has a more bitter taste than M. chamomilla. These plants are often confused with plants of the genus Anthemis, some of which are poisonous, and have either a revolting smell or are nearly odorless. These genera can be distinguished botanically by the receptacle which is hollow in Matricaria and filled in Anthemis.

Chamomile tea is made from the dried flowers.

Chamomile tea, one of the world’s most popular herbal teas, is made from dried flowers of either plant steeped in hot water. Commercial tea bags of chamomile contain either pure chamomile flower powder or may be blended with other medicinal herbs. The infusion is purported to have anti-anxiety properties, is widely regarded as a sleep-inducer and has been used medicinally for many ailments. Other preparations such as tinctures, poultices, and lotions are used as traditional medicines, and essential oils are used in aromatherapy and cosmetic preparations. The terpenes and flavonoids found in the oil of the flowers have been shown to have anti-inflammatory and antiphlogistic properties (topical anti-inflammatory activity) and some studies have shown potential therapeutic effects, but the value of plant preparations in treating a wide variety of conditions from eczema to diabetes to cancer has not been conclusively shown with evidence-based research. Chamomile is listed on the FDA’s GRAS (generally recognized as safe) list, but a relatively low percentage of people are sensitive to chamomile and develop allergic reactions, particularly those sensitive to ragweed and chrysanthemums (although some reports may be due to contamination). Chamomile flowers can also be used to make a yellow-brown fabric dye.

The annual chamomile grows quickly from seed to produce erect, branched stems up to 2 feet tall. The thin roots are shallow and spreading. The alternate, sparse, finely divided (double pinnate) leaves are long and narrow (to 3” long). The foliage is aromatic but bitter tasting.

Chamomile produces erect, branched stems (L) with sparse, finely divided foliage (LC) and long and narrow leaves that are double pinnate (RC and R).

The plants begin blooming in early to midsummer, producing a prolific number of solitary terminal flowers until the seeds begin to ripen in late summer or until frost if deadheaded. As with other plants in the daisy family, the inflorescences of this plant are paniculate flower heads (capitula), each composed of a domed central cone of bright golden yellow tubular florets surrounded by 10-25 white ray flowers. The flowers have a strong, aromatic apple-like fragrance and are attractive to bees and butterflies. After the flowers are spent they are followed by yellowish brown seeds (achenes). Plants readily self-seed (unless all flower heads are removed).

The terminal flowers (L) have a domed central cone (LC) and 10-25 white ray flowers (C and RC) with bright golden yellow tubular florets on the cone (R).

Harvest chamomile at near full bloom.

Harvest the flowers when they are near full bloom for best quality, snipping just the inflorescence from the stem. Flowers may be used fresh or dry on screens in a dry, airy spot out of direct sunlight, or in a dehydrator. Store well dried flowers in air-tight containers to protect from insect infestation and moisture that can lead to molds.

Grow chamomile as an herb or ornamental in full sun.

Chamomile can be grown as an herb in herb or vegetable gardens, or integrated into ornamental beds and borders. Grow chamomile in full sun and in well-drained soil. It will grow well in poor soils, so does not need much fertilizer and has few pest problems other than aphids. It is not preferred by deer. Since the plants are shallow-rooted irrigate as needed to keep upper levels of the soil moist but not wet.

Chamomile is grown from the tiny seeds.

Chamomile is propagated exclusively from seed, either planted directly in the garden in fall or shortly before the average last date of frost or started indoors 6-8 weeks before the average last date of frost to be transplanted outdoors at last frost date. The seeds need light to germinate, so surface sow and just press into the soil rather than covering. Under warm conditions germination should occur within a week. Larger plants do not transplant well, so grow individually in containers or transplant when small. There are some improved cultivars which have been selected for high levels of essential oils in commercial production but are rarely available to gardeners.

– Susan Mahr, University of Wisconsin – Madison


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Additional Information

  • Matricaria recutita – on the Missouri Botanic Garden’s Kemper Center for Home Gardening website
  • Chamaemelum nobile – on the Missouri Botanic Garden’s Kemper Center for Home Gardening website

18 comments

  1. Thanks for the article, didn’t know much about this plant, although I use the tea variety for sleep therapy.

  2. Didn’t know it would do well in pots. Good addition for my potted herb garden..good to know when to harvest the flowers.

  3. Love the tea. I have a small area so would not grow an aggressive plant. But interesting to know where the tea comes from. Good to help one to sleep.

  4. Chamomile is a pretty and tasty herb. But it does spread easily. I put in one plant and the next year there were volunteers all over the place!

  5. This was an interesting article and it was very nice to see the photos of when to harvest etc. While I don’t really save herbs for teas, it was an interesting read. I’m sure fresh chamomile is much tastier than processed and purchased (?)

  6. I did not realize this was related to Pineapple Weed, a weed that seems to pop up everywhere. I do have a wild place where I would like to nourish bees. I may buy some Chamomile seed. I may need to wait until fall now to plant it.

  7. A flower that pollinators love and is good for tea. This looks like a good choice for my northern Wisconsin garden, where there are a lot of deer. Thanks for posting!

  8. I grew my chamomile in a large container. It is pretty easy to grow. I didn’t know what to do with the flowers. So, this article was helpful. Perhaps I will try growing chamomile again.

  9. I’m growing for the 1st time this year & looking forward to tea!
    Thank you!

  10. Very informative, didn’t realize there were so many uses for the plant besides tea.

  11. Very interesting and helpful information. I think I’ll be trying to grow chamomile in my garden this year. Thanks!

  12. Very interesting. I didn’t know that there were so many medicinal uses for chamomile. And growing it in a container is an exciting option. I love growing plants that attract pollinators. And I usually grow my annual herbs in pots so I think this will be an great addition to my growing potted herb garden.

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