Crackerjack Marigolds (Tagetes patula)

Crackerjack African Marigolds (Tagetes patula) are bright, easy to grow annual flowers, recognised for their cheerful yellow, orange and red-gold blooms. They flower throughout the summer and can be regularly deadheaded to encourage new flowers, making the spent flower heads a useful seasonal material for natural dyeing.

Crackerjack marigold flower heads contain natural yellow and orange pigments. When simmered they typically produce colours ranging from soft lemon and golden yellow to warm orange and ochre shades, depending on the colour of the flowers and the concentration of plant material used.

Marigold flowers contain some natural tannins, but these are not present in high enough quantities to act as a strong mordant on their own. Alum can help produce clearer, brighter yellows and golden shades, while iron tends to mute the colour, shifting it towards olive, khaki and earthy brown tones.

Crackerjack marigold dyes work particularly well on wool and silk, while cotton and linen can produce softer, paler shades. As the plants flower abundantly throughout summer and respond well to regular picking, using the flower heads provides an accessible way to experiment with a plentiful seasonal dye plant. The spent flowers can also be dried and stored for use later in the year.

Images show tests using silk, cotton, linen and wool samples.
Samples were tested with no mordant, alum mordant and iron mordants as well as using a soda ash modifier after dyeing