What Is Calendula? An Introduction to the Plant and Its Uses

Calendula (Calendula officinalis) is a flowering plant in the daisy family (Asteraceae) that has been cultivated across Europe, North Africa, and western Asia for centuries. The plant goes by many common names — pot marigold, garden marigold, or simply calendula — and its bright orange and yellow flowers have been a fixture of both kitchen gardens and herb gardens since at least the medieval period.

This article covers what calendula actually is: the plant itself, how it grows, the difference between the various forms it takes, and why the dried flower is the form most widely used in tea, cooking, and topical preparations.

The Plant

Calendula officinalis is an annual or short-lived perennial herb that grows to about 30–70 cm tall. It produces flowers with a dense yellow or orange center disc and surrounding ray petals that range from pale cream-yellow to deep orange, depending on the cultivar. The name calendula derives from the Latin calendae, meaning the first day of the month — a reference to the plant's exceptionally long and consistent bloom period. In mild climates, calendula will flower nearly continuously from spring through autumn, and in some regions through the winter.

The entire above-ground plant has a slightly sticky, resinous quality — most noticeable when handling fresh flowers — due to the presence of triterpenoids and flavonoids concentrated in the flower heads. These compounds are what give calendula its distinctive color and are the reason the dried flowers are widely used as a natural colorant in food and cosmetic preparations.

Calendula vs. Common Marigold

Calendula is frequently called "pot marigold" and confused with the ornamental marigolds commonly planted in garden borders — the Tagetes species. These are botanically distinct plants from a different genus. Tagetes species have a much more pungent, musky scent and are not traditionally used in food or tea preparations the way Calendula officinalis is. See Calendula vs. Marigold: Are They the Same? for a full comparison.

Cultivation and Geography

Calendula is easy to grow, tolerant of poor soil, and thrives in cool weather with full sun. It is one of the earliest-seeded spring annuals and can handle light frost, which gives it a growing season that extends into autumn in most temperate climates. This reliability and long harvest window made it a staple of European monastic and cottage gardens for centuries.

Commercial cultivation for dried flowers and extracts is concentrated in Eastern Europe — particularly in Bulgaria, Romania, and Hungary — where the climate, soil conditions, and long botanical agriculture tradition produce high-quality flower crops. Farmers harvest the flower heads by hand when they are fully open, typically in multiple passes through the season as the plant continues to bloom.

The Dried Flower

Dried calendula flowers — or more precisely, dried flower heads — are the form most widely used for tea, culinary applications, infused oils, and topical preparations. When properly dried, the flowers retain much of their color and aromatic character. High-quality dried calendula should be vibrantly orange or yellow, not faded or brown, and the petals should be intact rather than crumbled to dust.

The drying process removes moisture while preserving the compounds that give the flower its color and character. Whole dried flower heads versus loose petals behave somewhat differently in use: whole heads are typically used in teas and decorative applications, while loose petals or ground flowers are used in cooking and skincare preparations. See How to Dry and Store Calendula Flowers for a detailed guide to the drying process and what to look for in commercially dried flowers.

Traditional Uses

Calendula's use across cultures reflects its versatility. Historically, the plant has been used in three main ways:

• As a culinary herb and colorant — The petals were used to color broths, rice, and butter in the same way saffron is used, and they appear in historical recipes for cakes, custards, and salads across European cuisines. See How to Use Dried Calendula Flowers in Cooking.
• As a tea and infusion — Calendula flowers steeped in hot water produce a mildly earthy, slightly floral tea. This use extends back centuries across European herbal traditions. See How to Make Calendula Tea.
• In topical preparations — Infused in oil, calendula has a long history of use in salves, poultices, and skincare preparations. See Calendula in Skincare: Traditional Uses and How to Make Calendula-Infused Oil.

For a deeper look at the historical record of these uses, see The History and Traditional Use of Calendula.

The Farmer Soul Approach

Our dried calendula flowers are organic — carefully sourced from Eastern European botanical growers with a long tradition of cultivating medicinal herbs. We source whole dried flower heads selected for color vibrancy and petal integrity. The flowers are not irradiated or treated with preservatives. What you receive is simply the dried flower, as it came from the plant.

Frequently Asked Questions

Is calendula the same as saffron?

No. Calendula and saffron are entirely different plants. Calendula (Calendula officinalis) is a flower in the daisy family; saffron (Crocus sativus) is a crocus. Historically, calendula petals were sometimes called "poor man's saffron" because they can impart a similar yellow-orange color to dishes, but the flavor is different, and the two are not interchangeable in flavor-sensitive applications.

Which part of the calendula plant is used?

Primarily the flower heads. The petals carry the color and are the most concentrated source of the plant's characteristic compounds. The leaves are edible but have a different character and are less commonly used in dried form.

Is calendula the same as Tagetes marigold?

No — this is a common source of confusion. Calendula officinalis and Tagetes species are both in the daisy family, but they are from different genera and have different properties, flavors, and traditional uses. See Calendula vs. Marigold: Are They the Same? for the full comparison.

What does calendula look like when dried?

High-quality dried calendula flowers retain a vibrant orange or yellow color. The petals may be slightly shrunken from their fresh state but should not be brown or gray, which would indicate poor drying or storage conditions. The flower head has a dense center disc with surrounding ray petals that give it a daisy-like appearance.

Related Articles

• How to Make Calendula Tea
• Calendula in Skincare: Traditional Uses
• How to Make Calendula-Infused Oil
• How to Use Dried Calendula Flowers in Cooking
• The History and Traditional Use of Calendula
• Calendula vs. Marigold: Are They the Same?
• What to Look for When Buying Dried Calendula Flowers

Sources and References

• Parkinson J. Theatrum Botanicum. London. 1640.
• Grieve M. A Modern Herbal. 1931. Reprinted Dover Publications, 1971.
• Rzeźnicka I, et al. "Calendula officinalis — A review of its traditional uses and phytochemical constituents." Phytochemistry Reviews. 2021.
• European Medicines Agency. Community herbal monograph on Calendula officinalis L., flos. EMA/HMPC/679928/2013. 2009.

The content on this page is for educational purposes only and is not intended as medical or nutritional advice. Consult a qualified healthcare provider with any questions about your health.