Calendula, with its bright, cheerful flowers and medicinal properties, brings a splash of color and usefulness to any garden. This annual herb, also known as pot marigold, is celebrated for its daisy-like blooms in shades of yellow and orange, adding a vibrant touch to garden beds, borders, or containers. The flowers are not only beautiful but also attract beneficial insects, making calendula a valuable plant for any garden.

In Florida planting zone 9, calendula thrives, particularly during the cooler months. The plants grow quickly, producing a profusion of blooms that can brighten up any garden space. Watching these sunny flowers flourish is a delightful experience, showcasing the success and beauty of your garden.

Calendula is not only visually appealing but also has numerous uses in human consumption. The petals are edible and can be used to add color and a mild, peppery flavor to salads, soups, and rice dishes. They are also used to make tea and as a natural dye for cheeses and fabrics. Additionally, calendula has medicinal properties; the flowers can be used to make salves, tinctures, and oils that are applied topically to soothe skin irritations and promote healing.

I would give calendula a 5 out of 5 on how easy it is to grow. It is very easy to cultivate and manage, making it perfect for beginners and experienced gardeners alike.

Calendula Growing Guide for Zone 9

Planting Time: In Florida, plant calendula in early spring or fall. Calendula thrives in cooler weather and can tolerate some heat, making it ideal for spring and fall planting.

Soil: Calendula prefers well-draining soil with a pH between 6.0 and 7.0. Adding compost or well-rotted manure to the soil can improve fertility and structure.

Sun: Calendula grows best in full sun to partial shade, requiring at least 6-8 hours of sunlight daily.

Watering: Keep the soil consistently moist but not waterlogged. Water regularly, especially during dry spells, to keep the soil evenly moist.

Spacing: Plant calendula seeds or transplants 12-18 inches apart. Calendula can spread, so proper spacing ensures adequate air circulation and room for growth.

Fertilization:
N-P-K Ratio: Calendula benefits from a balanced fertilizer with a slightly higher phosphorus content to support flower development, such as 5-10-10 or 10-10-10.

When to Add:

• Before Planting: Apply the fertilizer to the soil before planting seeds or transplants to promote strong initial growth and flower development.

• Mid-Growing Season: Reapply the fertilizer every 4-6 weeks during the growing season to support continued growth and blooming.

Application Tips:

• Follow the directions on the fertilizer package to avoid over-fertilization.

• Apply the fertilizer evenly around the base of the plants and water thoroughly to help the nutrients reach the roots.

Additional Tips:

• Calendula grows best in well-drained soil rich in organic matter, so consider adding compost to improve soil fertility and structure.

• Mulch around the plants to help retain moisture, suppress weeds, and regulate soil temperature.

• Ensure that calendula receives consistent moisture, especially during flowering, to prevent stress and promote abundant blooming.

Blog post on Natural Fertilizers

Harvesting: Calendula is ready to harvest when the flowers are fully open, typically 50-60 days after planting. Pick the flowers in the morning after the dew has dried by cutting the stems just below the flower heads. The petals can be used fresh or dried for later use.

Uses:

Culinary Uses: Calendula petals can be used as a colorful addition to salads, soups, and stews. They have a slightly peppery taste and add a splash of color to dishes. Calendula is sometimes used as a natural food coloring.

Medicinal Uses: Traditionally, calendula has been used for its anti-inflammatory, antiseptic, and healing properties. Calendula oil and creams are popular for treating skin conditions such as rashes, cuts, and burns. Calendula tea is also believed to have soothing properties for the digestive system.

Other Uses: Calendula can act as a pest-repellent, deterring pests like aphids, whiteflies, and nematodes. The plant also attracts beneficial insects that help control garden pests.

Beneficial Insects: Calendula attracts a variety of beneficial insects, including:

• Ladybugs: Which help control aphids.

• Hoverflies: Whose larvae feed on aphids.

• Bees: Which are important pollinators.

• Butterflies: Which also help with pollination.

Pests and Diseases:

• Aphids: Small insects that suck sap from the leaves and stems, causing curling and yellowing.

• Slugs and Snails: These pests can chew on the leaves and flowers, causing damage.

Natural Pest Control

• Powdery Mildew: A fungal disease that causes a white, powdery coating on the leaves.

Vegetables to Avoid Planting Near Calendula:

None specific: Calendula generally does not have specific companion planting issues and can be beneficial as it attracts pollinators and beneficial insects.

Warning:

• Safe for Animals: Calendula is generally considered safe for pets and is non-toxic to animals.

• Possible Skin Irritant: Handling calendula may cause skin irritation or allergic reactions in some individuals. Wearing gloves while handling the plant can help prevent this.

• Allergies: Individuals with allergies to plants in the Asteraceae/Compositae family, such as ragweed, chrysanthemums, marigolds, and daisies, may also be allergic to calendula.