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.
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 .
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.
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.
These estimates for how long Calendula takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.
Average 8 days | Min 1 days | Max 21 days (188)
Average 45 days | Min 9 days | Max 89 days (33)
Average 72 days | Min 35 days | Max 112 days (22)
Our when to plant Calendula estimates are relative to your last frost date.
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.
Pot marigold, English marigold, Edible Marigold, Garden Marigold
Calendula officinalis L.
Misspellings: Marigold, marigolds, canledula, calendoula, candalua,