How to Grow, Harvest, Dry and Use Calendula Flowers (With Photos)
Come learn all about calendula: my favorite edible and medicinal herb! This guide will explore how to grow calendula, along with how to harvest and dry calendula flowers to use for natural skin care, infused oil, salves and more. In addition to providing a burst of sunshine in the garden, you may be surprised to learn what amazing therapeutic properties it offers!
We’ve been growing calendula for over 10 years so this guide is full of pro tips, recipes, photos, and our favorite varieties to grow. We even have a designated “calendula farm” garden area now, where we grow flowers exclusively for our organic skincare line.
NOTE: This post was originally published in June 2019 but has been significantly updated since.

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About Calendula
Calendula officinalis is a cheerful, daisy-like flowering herb that is highly prized by gardeners and herbalist alike. It’s gorgeous, easy to grow, has a long blooming season, attracts pollinators to the garden (bees love it!), and is easy to save seeds from. It’s one of my favorite easy annual flowers to grow, hands-down.
Calendula is highly medicinal and edible, with many wonderful uses beyond the garden – including in the kitchen, natural medicine, and skin care products. Calendula is especially renown for its ability to soothe skin issues.
Note that calendula is sometimes referred to as “pot marigold” but don’t confuse it with true marigolds, such as french marigolds. They’re distinctly different, and not nearly as medicinal in nature.

Benefits of Calendula
If you read labels, you’ll probably notice calendula as a key ingredient in many natural skin care products, and for a good reason! When used topically, studies consistently show that calendula can ease, heal, or otherwise treat a huge array of skin conditions including rashes, swelling, eczema, burns, sunburn, acne, stings, wounds, scrapes, scars, and more.
Calendula works its magic by promoting cellular repair and growth, coupled with its natural antibacterial and anti-inflammatory properties. It’s most commonly applied to skin as calendula-infused oil, a healing salve, or lotion.
Above all, calendula is gentle in its work. According to expert herbalist Rosemary Gladstar, “calendula is a wonderful herb for babies – popular for treating cradle cap, diaper rash, thrush, and other skin irritations.”
When used internally (via tea or tincture) it can help boost the immune and lymphatic systems, fight fungal infections, reduce inflammation, menstrual cramps, and gastrointestinal upset, as well as keep fevers at bay. It’s also an anti-viral.

Our Favorite Calendula Varieties
Calendula comes in dozens of shades of the sunset: golden yellow, bright to light oranges, blushing reds, and some of my favorite, peachy-pink tones. Some plants grow quite tall (over 3 feet) while other varieties stay more compact and bushy. They all offer amazing healing properties, yet the more sticky and resinous the flowers are, the more potent your homemade calendula products will be.
Some of our personal favorite calendula varieties to grow include: Resina, Pacific Beauty, Strawberry Blonde, Pink Surprise, Oopsy Daisy and Zeolights.

How to Grow Calendula
Calendula is just about as no-fuss and low-maintenance as they come! It’s easy to grow calendula from seed, or you may be able to find seedlings at your local nursery in spring. It grows well in just about every zone, including in containers.
- Direct sow calendula seeds outdoors after the last spring frost in your zone, or start seeds indoors 6 to 8 weeks before the last frost. See tips on starting seeds indoors in the section to follow.
- Plant calendula seedlings outside once the risk of frost has passed, spacing plants about 8 to 12 inches apart in the garden.
- Calendula is not picky about soil. It performs best in moderately rich, well-draining soil but is known to tolerate poor soil conditions too. Some of our volunteer calendula plants grow happily in gravel even!
- Calendula grows best in full sun, though partial or afternoon shade can be beneficial in places with exceptionally hot summer weather.
- Provide moderate water. Calendula is fairly drought-tolerant so it won’t appreciate overly wet conditions.
- Once established, calendula is tolerant to both heat and cold. In places with mild winters, you can grow it year-round! Expect prolific blooms from calendula in spring through fall.
- Calendula readily self-seeds (especially if you don’t harvest the flowers) so new plants will grow back as “volunteers” year after year.

Starting Calendula Seeds Indoors
We prefer to start our calendula indoors to get a jump start on the growing season, which means harvesting blooms sooner too!
- To start indoors, sow calendula seeds in containers of fluffy seed-starting mix about 6 to 8 weeks before the last spring frost date in your zone. Plant seeds approximately 1/4-inch deep.
- Use a seedling heat mat to help encourage quick germination, and provide ample bright light (e.g. a grow light) to prevent them from getting leggy.
- Keep the soil evenly damp but not soggy.
- Transplant calendula seedlings outside once the risk of frost has passed, but be sure to harden off indoor seedlings first to prevent transplant shock!
Pro Tip: I always thin my seedlings to one plant per cell or seedling pot within just a week or two of sprouting. (I simply trim out the extras at the soil line.) Early thinning reduces competition and makes seedlings grow SO much faster! See our complete guide on starting seeds indoors for more detailed tips.


Calendula Pests and Disease Control
Thankfully, calendula doesn’t attract many pests. I’ve heard it’s deer resistant too!
Thrips, aphids and whiteflies may occasionally bother calendula plants, which can be blasted off with water or treated with homemade insecticidal soap. We occasionally see tiny bugs on our flowers but don’t treat them since they’re used for organic skincare products. Instead, the bugs seems to simply disappear once we harvest and dehydrate the flowers.
The most common disease that effects calendula is powdery mildew, which unfortunately is very prevalent here. Avoid overcrowding plants to increase airflow and reduce the chances of disease. Thankfully, the mildew seems to mostly affect the foliage and not the blooms. Learn how to prevent and treat powdery mildew organically here.

How to Harvest Calendula
- To harvest calendula, simply pluck or cut off the whole flower head where it meets the stem. Don’t pick petals only. Contrary to popular belief, the most medicinal part is the sticky green base of the flower head, NOT the petals alone.
- For the most healing benefits, harvest calendula flowers when they’re young, fresh and have just fully opened. If your schedule allows, it’s best to harvest calendula mid-morning, shortly after the new blooms have opened but after any dew has dried. Wet flowers can mold in storage!
- My fingers get super sticky when I’m picking calendula… but that’s a good thing! Again, the sticky resin is where most of the healing power comes from.
- Older, fading calendula flowers (including those forming seed) aren’t as medicinal in nature. You can either leave those on the plant to fully mature and dry out for seed-saving OR snip them off to discard before the seeds mature – which will reduce self-seeding and keep your plants looking tidy. Routine dead-heading will also promote more new blooms!
- After harvest, it’s key to start drying the flowers right away to prevent mold. See drying instructions below.
Pro Tip: Don’t be shy about harvesting calendula flowers! The more you harvest, the more will grow. So if you’re serious about stocking up on calendula, plan to harvest new blooms every few days.


How to Dry Calendula
It’s essential to fully dry calendula flowers before putting them away for storage. Otherwise, the thick sticky flowers are prone to growing mold. (I’ve heard so many horror stories about jars full of moldy blooms – SO sad!) Plus, it’s important to use 100% dry flowers to make calendula oil or salves, which can also grow mold if they aren’t properly dried first.
You can dry calendula in a food dehydrator or attempt to air dry the flowers (both explained below). However, I don’t recommend drying calendula flowers in the oven. Exposure to high heat can denature and ruin its therapeutic compounds.
Don’t wash calendula flowers before drying. Extra moisture isn’t welcome! If needed, gently shake them out to dislodge dust or occasional insects. In my experience, the flowers are pretty clean since we harvest newly-opened blooms.
We dry our calendula flowers whole. You can also dry just the petals, which will dry more quickly and have less chance of mold. However, plucking petals is tedious and you lose the most medicinal part (the base of the flower).

How to Air Dry Calendula
It’s possible to passively air dry calendula flowers under the right conditions. It takes a bit of time and patience (up to a week or longer), but be forewarned they could develop mold if they don’t dry quickly enough.
- Spread out the calendula flowers on screens, in airy baskets, or other breathable racks like this mesh hanging herb drying rack.
- Then place them in a warm, well-ventilated, arid location to dry.
- Periodically toss and turn the blooms to ensure they’re drying evenly.
- You can also set up a fan nearby to encourage good airflow.
I personally don’t mess with air drying – especially in our cool, mild climate. It simply takes too long and I don’t want to risk them molding. Plus, we want to ensure the flowers are 1000% dry before making infused oil and salves (so they don’t spoil) so we use our food dehydrator.

Drying Calendula in a Food Dehydrator
Drying calendula flowers in a food dehydrator is the most quick, effective, and foolproof method.
- Spread the flowers out in a single layer (not piled up or overlapping) on your dehydrator trays.
- Dehydrate them on a low heat setting – ideally around 95-100°F – until they’re fully dry. Remember, high heat can ruin some of their beneficial properties! Our favorite Excalibur dehydrator has a “living foods” setting we like to use for calendula and other sensitive herbs.
- The time it takes to fully dry varies depending on your dehydrator and the thickness of the flowers. For example, some of our smallest blooms dry well within one day while very large flower heads take longer. We usually dry our calendula for at least 48 hours (or longer) before putting it away for storage, just to be safe.

How to Store Calendula
Once they’re fully dry, store dried calendula flowers in an airtight container (e.g. large glass jars) in a cool, dark location. Dried calendula will be the most potent if used within one year, though it’s still okay to use for several years – as long as the flowers are still in good dry condition (not moldy).
How to Use Calendula for Skin Care
Come experience the magic of calendula for skin health for yourself! When applied topically, it can soothe skin irritation better than prescription creams.
- You can make homemade calendula oil, which is made by steeping and slowly infusing the dried flowers in a carrier oil of choice (such as olive oil, jojoba oil, or sweet almond oil). After several weeks, strain away the flowers and you’re left with a potent, therapeutic oil that can be applied directly to skin or used in other DIY skin care products.
- Use calendula oil as an ingredient to make homemade calendula salve, calendula soap, lotion, hand cream, body butter, lip balm and more. See related recipes below.
- Oil aside, you can add calendula petals (or dried flowers) to homemade bath salts, soap, body scrubs or right into a bubble bath.
RELATED: Don’t miss our easy step-by-step guides on how to make calendula oil and homemade calendula salve, or our whipped body butter recipe! We also offer premium organic calendula salve, face oil, and hand and body lotion in our shop – made by hand with love on our homestead.



Other Ways to Use Calendula
- Sprinkle fresh or dried calendula petals as a garnish on top of salads (or any dish really) for a playful pop of color! I like to add the petals to salads, spring rolls, quiche, ice tea, mocktails, flower-infused ice cubes, or to dress up the top of dips like guacamole or summer salsa.
- Make calendula tea! Calendula tea tastes mild and earthy, and offers great anti-inflammatory, antioxidant, and antibacterial properties. According to the Chestnut School of Herbs, calendula tea is especially popular to ease heartburn, digestive issues, menstrual cramps and swollen lymph glands. Steep about 1 to 2 loose tablespoons of dried petals, or 4 to 6 whole dried flowers per 8 ounces of water. Cover and steep in hot water for 8 to 10 minutes, and then enjoy!
- If you have chickens, calendula petals can be added to their nesting boxes as a natural insect repellent. Also, if you feed your chickens fresh or dried calendula petals, their egg yolks will be even more golden orange! Plus, they’ll reap all the health benefits by consuming it as well.


Frequently Asked Questions
Yes, mature calendula plants are frost tolerant once established (but not hardy against a full hard freeze). They may exhibit some slight damage or wilting after exposure to frost but will bounce back and continue to grow.
Calendula is most often grown as an annual flower in most zones, though it can survive as a short-lived perennial in warmer climates too (zone 9-11).
Calendula doesn’t usually need to be pruned, though routine harvesting (or dead-heading) of the flowers will help promote more new blooms. If parts of the plant get sparse and unhealthy looking, you can cut the plant back by about 1/3 to encourage fresh new growth.
Calendula is generally considered very gentle and safe to use, especially when used topically. However, calendula is a member of the daisy family so it could trigger allergies for those sensitive to the Asteraceae family – such as ragweed, marigolds, daisies, goldenrod and dandelion.

And that concludes this lesson on growing and using calendula!
I hope you found this article to be interesting and helpful as you start your calendula journey. Even if you don’t plan to make salves and oil, you won’t regret adding it to your garden! Feel free to ask questions in the comments.
If you want to dive deeper, I highly recommend checking out the book “Medicinal Herbs: A Beginner’s Guide” by Rosemary Gladstar. It has been one of my key sources of information and inspiration thus far – for calendula, and beyond! Another great resource is this Organic Body Care Recipes book.
Don’t miss these related posts:
- Growing Herbs 101: How to Start a Kitchen Herb Garden, Indoors or Out
- How to Dry Fresh Herbs: 4 Easy Ways + Storage Tips
- Pressing Flowers for Beginners: How to Press Flowers 4 Ways (Pros and Cons)
- 7 Best Easy Annual Flowers to Grow In Any Zone (With Photos)




126 Comments
Pat Moore
Try a soapy mixture of water and soap and spray the mildewy areas. Also pick 4 fat Aloe Vera leaves and grind them and add to water, spray on and around your flowers, it fertilizes, prompts root growth and helps build plants immunity. Burdock plants leaves are used this way to deter insects on plants. Plus you can eat fresh young burdock leaves and harvest/skin the roots and use in stir-fry. Burdock and dandelion greens are super Liver detox.
Sally
This was such a marvelous post. Thank you! I can’t wait to get some seeds and plant. I did not realize it was an herb with medicinal value as well as a beautiful flower. I have a small raised bed garden and will find areas to plant this in around my garden. Can’t wait to harvest and dry it and use it for many things in the kitchen as well as medicinally. Thanks again.
Sara C
Hi, I’ve been air drying my calendula in our house and this year had some caterpillars appear all over the room😬 would using a dehydrator help prevent hatching? Or am I maybe not picking the flowers soon enough?
Aaron (Mr. DeannaCat)
Hi Sara, it seems you have a lot of caterpillars in your area that like calendula flowers. The caterpillars were likely already on the flowers when you harvested them, once the caterpillars sense the flower is no longer living, they evacuate in search of other suitable foods. You can try and harvest the flowers more often and see if there are fewer caterpillars appearing on your flowers. Also, using insect netting would help keep the moths from laying eggs on your calendula to begin with. We also have another article on 8 Organic Ways to Get Rid of Cabbage Worms & Cabbage Moths that may be of use to you. Hope that helps and good luck!
Molly Tlas
Hi there! I’m in Phoenix.
You recommend planting seeds in the spring. Could I start now or is it too warm? It’s still 105 these days.
I bought calendula flowers on Amazon and am now infusing them in jojoba oil. I’m looking forward to growing my own for this!
Aaron (Mr. DeannaCat)
Hi Molly, Phoenix may still be a tad too warm to actually plant anything outdoors, especially when the seedlings are so small, they are at even more risk from environmental pressures. I know a lot of people grow veggies over the winter in Arizona so I think you still have plenty of time. If you have a grow light, it may be beneficial to start the seeds indoors and keep them as seedlings under a grow light for a month before you harden them off and transplant outside. Looking at average temperatures in Phoenix, it looks like mid to late October would be a good time to start your seedlings but it may still be a tad warm for them outside as seedlings. November is looking like a great month for plants to start taking off with growth. Hope that helps and good luck!
Gayla Moudry
Such good information is there a way to get a print. I have been buying calendula to make oil at home but have not tried growing and drying my own. I live in the panhandle of Florida. Thanks
Aaron (Mr. DeannaCat)
Hi Gayla, unfortunately our website is not designed to easily print out our articles but our recipes and how to articles have a printable option at the bottom of the article, such as our How to Make Calendula Oil, Plus 8 Ways to Use it! and How to Make Homemade Calendula Salve for Healthy Skin articles bot have printable options. But you should absolutely grow your own calendula as homegrown calendula flowers far surpass any you can purchase in quality and medicinal value. Since calendula prefers cooler temperatures and you live in the Florida panhandle, you can likely grow calendula through most of the year as it can handle light frosts but the plants may struggle during your hottest months as anything over 85 degrees F may be too hot. Hope that helps and have fun growing calendula this year!
David McGuinn
I have ben harvesting my calendula by cutting the stems as low as possible being careful not to remove any unopened buds. I then hang the stems inverted with the flower heads and some attached leaves for a few days. I do this hoping that as much resin as possible will move up into the flower head. My thought in removing the stem is that in continuied growth resin will not be sent up a stem that will not produce any further blossoms. After a few days I remove the flower heads and go through the drying process.
When I harvest, I feel the stem to see when it is most sticky and when the blossoms are most fully open.
This is often about 2 o’clock in the afternoon. Do you think this is not a good idea as most information
suggests harvesting around mid morning?
By the way,great site with wonderful info. Many thanks.
Please be well. Love and Peace
David
Aaron (Mr. DeannaCat)
Hi David, harvesting the blooms when they are most sticky is a good idea, I can’t quite tell what part of the day they are most sticky as my fingers are usually stuck together by the time I am done harvesting no matter what time of day I harvest. We also just pluck the blooms off at the top of the stem and dry the flowers in our dehydrator on a very low setting, not sure that cutting off part of the stem is necessary or not but if you works for you, then all the better. Hope that helps, we appreciate your support, and have fun growing!
Lace Faerie aka Karen
I was wondering if the flowers that are starting to develope seeds are still beneficial? Can the immature seed heads be used?
Thanks for all the great posts!
Aaron (Mr. DeannaCat)
Hi, yes they can still be used. Much of the medicinal properties are found in the green, bottom portion of the flower head itself. Hope that helps and good luck!
Alyssa
Hi there! Do you sell any calendula seeds from your garden? Thanks!
Aaron (Mr. DeannaCat)
Hello Alyssa, unfortunately we do not. A few years ago we did a limited release on a mixed variety of seeds containing calendula, zinnia, marigold, and coneflower but that was more of a “one off” type of thing. We really like quite a few varieties that are easy to find and we use High Mowing Seeds for most of our seed purchases. Hope that helps and have fun growing!
Judy
Your informative articles on growing calendula and making salve have inspired me to give it a try. My calendula plants are starting to bloom beautifully and I’m at the stage now of dehydrating the flowers in my new dehydrater. I’ve lost track of how long my dehydrater has been running but the petals are definitely dry. I’m just not sure if the rest of the head is dry enough. How can I test this or be sure? Should it crumble between my fingers as when I dry herbs?
Aaron (Mr. DeannaCat)
Hi Judy, we have found that usually 48-72 hours at 95-98 degrees F is enough time for the flowers to be dry. You don’t need to crumble the flowers to see if they are dry as ours will usually still maintain their shape and not fall apart even when fully dry. You can always inspect/squeeze the flowers and see how dry they feel and if you aren’t quite sure and don’t need your dehydrator for anything else at the moment, I would just set it for another 24 hours and hopefully they are fully dry by then. Hope that helps and good luck with your calendula flowers and salve.
Elizabeth Raptis
I need to know if I can place flowers into my salve when I pour it into the container. Should I use fresh or dried flowers to do this?
Aaron (Mr. DeannaCat)
Hi Elizabeth, definitely use dried flowers to garnish your salve and I would add the petals after the salve has been poured into the containers but before it solidifies. If the petals don’t as readily float on top while the salve is still liquid, you may have to let it harden more before garnishing them. Hope that helps and enjoy your calendula salve.
Keira
Super informative.
Karissa
Hey Mr. and Mrs. Deannacat, I’ve been *trying* to grow calendula for about a year now and the issue I run into often is the powdery mildew. Today I was looking through the leaves and I had the instict to take off all the leaves and any growth at the bottom of the stem to get some airflow. I hope this doesn’t shock my plant too much, its already flowering so I’m not sure if it was a good idea to do this at this stage. Can you provide some insight on common practives for pruning calendula? Is it safe to assume that just as other plants, if you prune the bottom leaves that it will promote top growth? Thanks!
Aaron (Mr. DeannaCat)
Hi Karissa, we don’t typically prune up the bottom of calendula plants but it can’t be a bad idea to promote more air flow. As the plant continues to grow and get larger, the bottom leaves actually turn brown and die off, later in the plants life it is a bit more bare down low and turns a little more “scraggly” looking, without having as many lush green leaves like it does in the beginning. Calendula can be a difficult plant to grow due to the problem with powdery mildew, we have been trying a thing or two this season to combat it but it is still too early to share our findings. You can spray them with potassium bicarbonate once a week as a preventative or twice a week if you have an infestation to try and keep the mildew down. Hope that helps and if we find something that works better for PM, we will be sure to share it.