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Growing Calendula

Growing Calendula

Neon Calendula



Calendula, also called Pot Marigold, is a very easy-to-grow flowering annual for full sun. It has vividly colored flowers that attract pollinators and beneficial insects.

How To Grow

Calendula can be sown outdoors in garden beds or containers once all frost danger has passed. Seed can also be started indoors 4 to 6 to 8 weeks before outdoor planting time. Plant the seed ¼ to ½ inch deep.


Best in well-drained soils. Tolerates some shade, but prone to stretching in too much shade. Plants prefer partly shaded sites in hot, humid climates. Often reseeds in the garden if plants are not deadheaded.

Fertilizer Recommendations

Calendula is a low to moderate feeder that benefits from occasional fertilization. Use low rates of  ALGOplus Flowering Plant 4-6-7 liquid fertilizer, Neptune Fish & Seaweed Fertilizer 2-3-1, or Osmocote slow-release 14-14-14.

Common Problems

Calendula is usually free from pest and disease problems. Powdery mildew disease is an occasional problem.

Alternative Products

Other easy-to-grow summer annuals include Cosmos, Marigold, and Zinnia.

Complimentary Products

Other annuals with edible flowers include Borage and Pansy.

Product Recommendations

Use 70% neem oil to control powdery mildew.

Calendula Facts

Flowers are edible and can be used as a garnish or in salads or soups. Flower petals are used as an ingredient in herbal products for the skin and hair and as a food coloring.

Growing Tips