How to Grow Calendula (UK guide)
Calendula, sometimes known as pot marigold, is one of the easiest annuals to grow. Loved by pollinators and appreciated for its versatile edible petals, it offers both beauty and function in the garden.
Easy-going, sunny blooms for borders or pots
Calendula is a cheerful, hardy annual producing vibrant daisy-like flowers, ideal for beds, borders, and pots. Suitable for beginners, it thrives with little attention and can be direct sown into garden soil or started indoors.
Cut Flowers
Easy annual, edible petals, attracts pollinators
How to Grow Calendula from Seed
- 01Fill modules or small pots with peat-free compost and moisten slightly.
- 02Press seeds gently into the surface, covering with 1cm of compost.
- 03Keep trays at 15–18°C until germination, usually 7–14 days.
- 04Once seedlings have two true leaves, pot on or thin to strongest plants.
- 05Gradually harden off indoor-raised seedlings before planting out after frost.
You will need
- 01Well-drained soil
- 02Regular deadheading
- 03Full sun
- 04Consistent watering
Should I pinch out calendula?
Pinch out the growing tips of young calendula seedlings when they’re 10–15cm tall to encourage bushier growth and more blooms.
Plant Calendar
Essentials for Successful Calendula
Full sun
Needs at least six hours of direct sunlight daily for best flowering and compact growth.
Well-drained soil
Calendula dislikes soggy roots, so ensure soil drains freely, especially in containers.
Regular deadheading
Frequently remove faded blooms to extend the flowering period and keep plants healthy.
Consistent watering
Water evenly to prevent stress or development of powdery mildew.
Calendula: FAQs & Common Problems
Calendula FAQs
Pick calendula flowers every few days during peak summer to encourage continuous blooming. Regular deadheading helps keep plants tidy and lengthens the flowering period into autumn.
Calendula grows well in containers. Use a pot at least 20cm wide and deep, filled with peat-free multi-purpose compost. Ensure good drainage by adding crocks or gravel at the base.
Calendula does not need heavy feeding. A light application of balanced liquid feed every 3–4 weeks during flowering is beneficial, especially when growing in pots.
Water calendula when the top 2cm of soil feels dry, but avoid overwatering. Inconsistent moisture can lead to powdery mildew, so aim for steady, even watering at the base of the plant.