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Glam Ledger

How do you germinate calendula seeds?

Author

James Williams

Published May 06, 2026

Seeds can be sown directly in the garden, in the spring after danger of frost. Mark a row, and drop seeds every 6 inches, cover with ¼ - 1/2 “ soil, pat gently and water. Seeds should germinate within a week, and plants will blossom 6-8 weeks later.

Keeping this in consideration, do calendula seeds need heat to germinate?

Although calendula germination temperatures vary, the University of New Hampshire Cooperative Extension recommends waiting until soil temperatures reach 60 degrees Fahrenheit before sowing calendula seeds directly in the garden.

Also Know, what temperature does Calendula germinate? Plants: Calendula can be grown by transplants or seed. Seeds germinate readily. Plant seeds ¼ inch deep when soil temperatures reach 60°F. Seeds germinate in 1-2 weeks.

Regarding this, how many days does calendula seeds take to germinate?

Calendula won't germinate in extremely hot weather. Seeds germinate in seven to 10 days. Calendula grows well in Zones 2 to 10 with a soil pH range from 5 to 8.

Do you cover calendula seeds?

Pot marigold (Calendula) is best grown from seed and sown where it is to flower. Sow the seed thinly in patches or rows, 1cm deep, and cover lightly.

Related Question Answers

What does a leggy seedling look like?

'Leggy' seedlings typically have stretched skinny stems and look fragile. They may be bending forward rather than growing up straight with a strong stem. If your newly germinated seedlings look like this, it may be due to one of three common causes: Insufficient Light.

When should I plant calendula seeds?

Sowing in spring is the typical time for calendula seed propagation, but you can do it again in the summer to get more fall blooms. The plants may be weaker due to the hotter temperatures, but they will still give you extended flowering.

Can I sow calendula in June?

Late summer flower seeds

You can direct sow lots of seeds now which will bloom in late summer; Calendula, Candytuft and Nigella are all good options. Nasturtiums are also brilliant to plant now: they germinate really easily, grow quickly, and the flowers are edible too.

Does calendula self sow?

Calendula will self-sow yearly in many gardens and don't mind crowding. Direct-sow the seeds in early spring or late fall, as they can withstand some frost.

What grows well with calendula?

Calendula grow nicely in the vegetable garden. Good companions are: Cucumbers, Tomatoes, Peas, Carrots, Asparagus, Spring salad vegetables. The flowers bloom best in cooler weather with low humidity. Cut them back and they will reward you with new growth and more flowers when the weather cools off.

Can calendula survive frost?

Calendula plants are not frost tolerant, but they do prefer cooler temperatures. In the south, calendulas may bloom from late winter into spring then die back during the extreme heat of summer. In warm climates, most calendula are still treated like annuals because of their intolerance of the summer heat.

Will calendula grow in shade?

Calendula are best planted in well-drained soil of loam, sand and chalk within a neutral, acidic or alkaline PH balance. They are best positioned in an area of full sun or part shade.

How often do you water calendula seeds?

Watering The Calendula Plant

During the hot weather, give the Calendula s one to one and a half inches of water once a week. Although the plants can tolerate low-water conditions, irrigating regularly encourages summer blooming.

Should I start calendula indoors?

A cool-season plant, calendula can be started indoors under grow lights 6-8 weeks before the last frost or directly seeded outdoors after the last frost (see Starting Annual Flowers Indoors). Seeds germinate in 5-15 days.

What's the difference between calendula and marigold?

Shape: Calendula petals are long and straight, and the blooms are rather flat and bowl-shaped. They may be orange, yellow, pink, or white. Marigold petals are more rectangular with rounded corners. They aren't flat, but slightly wavy.

Does calendula come back every year?

The calendula flower or flowering herb is an annual which will readily reseed. As the calendula prefers cool temperatures, flowers last longer in filtered sun or shady areas. If deadheaded regularly, this plant can bloom from spring through fall and beyond.

How long does it take for zinnias to grow from seed?

Zinnias generally take 60 to 70 days from seed to flower (though it depends on conditions and variety). They work great in a flower bouquet!

How do you propagate calendula?

Propagate by seed - Sow seeds outdoors a few weeks before the last frost in the spring, or start them indoors 6 to 8 weeks before the last frost. Avoid warm propagation temperatures, as they will produce weak plants. Keep the seeds covered with soil, as light inhibits germination.

How do you plant nasturtium seeds?

Put two seeds (1" deep) in each pot and grow them under lights or in a bright location, such as a south-facing window. It takes about 10 to 12 days for nasturtiums to germinate. When the seedlings have a few sets of leaves, pinch out the weaker seedling, leaving one per pot.

Do calendula need pinching out?

Calendula is a traditional cottage garden flower and culinary herb, which has recently become a popular choice for bedding displays. Deadhead spent blooms to prolong flowering and pinch out shoots to encourage bushy growth. If specifically growing for cut flowers, pinch out the terminal buds to encourage more flowers.

Will deer eat calendula?

One extra benefit to note about calendula: it's deer resistant. No plant is fully deer proof, as many a gardener will attest. However, deer generally don't munch on calendula flowers, so if your garden is frequented by Bambi and her kin, you may have some luck with calendula.

Does calendula transplant well?

Calendula is very easy to grow from seeds or transplants. You should plant purchased seedlings after the danger of frost has passed; you can sow seeds just before the last frost date in the spring.

How close can I plant calendula?

Spacing: Space calendula plants 8 to 10 inches apart.

What does calendula seed look like?

What do calendula seeds look like? Calendula seeds look like little curved letter C's or tiny snakes or worms in a C shape. They may be green or tan, depending on their maturity, but aim to collect them when they are brown if you have the choice. The seeds develop on the dried, dead calendula flower heads.

Can you eat calendula leaves?

Calendula flowers or just the petals can be used for culinary purposes. The leaves and petals of this plant are edible. The leaves are typically bitter and often are added to leafy salads. The fresh petals are used as a garnish, seasoning, or a traditional yellow cheese colorant.

How far do you space Basil?

Basil - Key Growing Information

SOWING: Direct seed (recommended): Plant seeds 1/4" deep, 2-3 seeds per inch, in rows 18" apart. Firm the soil over the seeds. Thinning is not necessary, but a final spacing of 4-8" apart produces healthy, full plants.

How far apart should I plant cosmos?

They should be planted 30 to 45 cm (12-15 inches) away from each other to allow for bushy growth. If your garden is in a windy location it is a good idea to stake and tie the plants. However, normally the plants should be sturdy enough to require support.

Are there different types of calendula?

Pot marigold Field marigold Calendula maritima Gazania lichtensteinii

What kind of soil do zinnias like?

Soil: Zinnias grow best on fertile, well-drained soils high in organic matter. Well-drained soil is important because zinnia seedlings can be prone to rotting in cool, wet soils. Spacing: Plant zinnia seeds a few inches apart in rows or clumps.