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Calendula      

Calendula officinalis

Belonging to the Calendula (Pot Marigold) genus, Calendula has a botanical name of Calendula officinalis. The botanical name epithet officinalis means 'used medicinally'.

Long flowering and easy to grow border favourite. Shades of yellow and orange with many petals. Always reliable in wet or dry summers. It is a perennial, but is treated as an annual in cold climates, where it survives poorly in winter, and in climates with hot summers where it also doesn’t survive4. It tolerates a wide variety of soil types4 but does best in rich, well-drained soils in sunny spots. They are quick to bloom from seed (typically about 2 months)4.

Blooms typically mature to a diameter of 6.0 cm (2.34 inches imperial) and produce a herbaceous fragrance, whilst displaying in these approximate colours:   Orange and   Canary yellow and   Floral white. Leaves appear approximately as a   Bright green and   Dark pastel green

Calendula grows as an annual/perennial and is an edible flower / herb. Being an annual / perennial plant, it tends to grow either as a single season plant, or a plant that can stay in your garden for many years.

Calendula is known for its erect habit and growing to a height of approximately 60.0 cm (1.95 feet). This plant tends to bloom in mid summer.

Try planting Calendula if you'd like to attract butterflies and bees to your garden.

Popular varieties of Calendula with home gardeners are Pacific Beauty, Zeolights, Resina, Flashback mix and Solar Flashback Mix.

Due to how easy it is to grow in a variety of conditions, Calendula is great for beginner gardeners and those that like low maintainance gardens.

This plant info is provided by the myfolia gardener's wiki. All details about Calendula have been kindly provided by our members.

How to grow Calendula

  • Full Sun

    OR
  • Partial Sun

  • Medium

For continuous display, make sowings at two or three weekly intervals. Water well until plants are established. Late summer and autumn sowings (in areas with little frost, Zones 8-11)4 will flower the following season. Plants tend to wither in sub-tropical summers4.

Remove dead flowers to prolong flowering season.

Requires well-drained soil. Fertilisers rich in phosphorus will promote flowering.

Plant in a location that enjoys full sun / partial sun and remember to water moderately. Zone 2 to 11 are typically the USDA Hardiness Zones that are appropriate for this plant (although this can vary based on your microclimate). Planting Calendula in loamy soil with a ph of between 6.1 and 7.8 is ideal for as it does best in weakly acidic soil - weakly alkaline soil. Keep in mind when planting that Calendula is thought of as half hardy, so remember to protect this plant from frosts and low temperatures.

See our list of companion Plants for Calendula to see which plants you should plant in close proximity to encourage growth.

Growing Calendula from seed

Can be sown early under glass or sown in Autumn. Sow into finely prepared soil which has already been watered.

Calendula reseeds itself readily. Keep seeds covered lightly with soil, as light inhibits germination.

Try to aim for a seed spacing of at least 7.8 inches (20.0 cm) and sow at a depth of around 0.2 inches (0.5 cm). Soil temperature should be kept higher than 10°C / 50°F to ensure good germination.

By our calculations*, you should look at sowing Calendula about 35 days before your last frost date .

Transplanting Calendula

Calendula do not transplant easily so it is better to thin seedlings in the place you have chosen for them to flower.

As Calendula is half hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.

Seed Saving Calendula

Seeds in marigolds vary greatly in shape, from long and thin to short and fat – all of them are viable.

Seed viability is five years.

How long does Calendula take to grow?

These estimates for how long Calendula takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.

Start logging and journaling your observations to participate!

Days to Germination How long does it take Calendula to germinate?
8 days

Average 8 days | Min 1 days | Max 21 days (188)

Days to Transplant How long until I can plant out Calendula?
+ 45 days

Average 45 days | Min 9 days | Max 89 days (33)

Days to Maturity How long until Calendula is ready for harvest / bloom?
+ 72 days

Average 72 days | Min 35 days | Max 112 days (22)

Total Growing Days How long does it take to grow Calendula?
= 125 days

When should I plant Calendula?

Our when to plant Calendula estimates are relative to your last frost date.

Enter your frost dates and we'll calculate your sowing and planting dates for you!

When to sow The number of days to sow Calendula before or after your last frost date.
35 days before Last Frost Date

Calendula Etymology

The botanical epithet is from the Latin officinalis meaning “used medicinally”

Calendula Folklore & Trivia

Marigold petals are considered edible – and can be used to add color to salads.2 Marigold extract is sometimes added to chicken feed to produce darker egg yolks.

Can be applied topically to treat sprains, bites, stings, varicose veins,1 and other ailments.3

Other names for Calendula

Pot marigold, English marigold, Edible Marigold, Garden Marigold

Calendula officinalis L.

Misspellings: Marigold, marigolds, canledula, calendoula, candalua,

Latest Calendula Reviews

  • plant finished for season, seeds collected, remainder of plant to composter

    0 stars

    CraftyGardener about growing Calendula
  • Great addition to any garden spot. Flowers can be used in teas and has medicinal uses. A great self-sower to bring brilliance into future gardens. Bright cheery blooms and brings in beneficial insects for pollination.

    5 stars

    Fhaith about growing Calendula

See all Calendula reviews and experiences »

Footnotes

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