Dyer's chamomile
Cota tinctoria · Asteraceae
📷 AnRo0002 · CC0
The gardener's calendar
Ideal time to plant dyer's chamomile: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Scientific name
- Cota tinctoria
- Family
- Asteraceae
- Plant type
- Annual or biennial herbaceous plant
- Mature height
- About 60 cm
- Flowering
- June to August
- Exposure
- Full sun
- Hardiness
- Good, suitable for temperate climates
- Origin
- Mediterranean region and central Europe
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability high.
Expert tips
The key tip
Cota tinctoria is super easy but reseeds everywhere if you don't deadhead the flowers before they set seed. Let it do its thing and it'll come back every year.
The common mistake
Letting it reseed all over the place the next year—it'll take over your entire garden and you'll lose control.
The pro's trick
Divide established clumps in March: it bounces back crazy fast and you'll get 3–4 plants from one.
Care
Exposure
Place your dyer's chamomile in full sun, ideally for at least 6 hours per day. This plant loves sunlight and your flowering will be all the more abundant the more sun exposure it receives. Avoid prolonged shady areas which would reduce flowering and encourage etiolation.
Watering
Water regularly but moderately, keeping the soil slightly moist without creating waterlogging. During active growth and flowering (spring-summer), increase watering frequency if the soil dries out. Reduce watering in autumn and winter.
Soil
Dyer's chamomile adapts to most soils, provided they are well-draining. Ordinary garden soil enriched with compost at planting time is sufficient. Avoid overly compact or waterlogged soils.
Fertilizing
A balanced fertilizer application in early spring is generally sufficient. If your plant is grown in a pot, you can add diluted liquid fertilizer every 3 to 4 weeks during flowering. Avoid excess nitrogen which would favor foliage at the expense of flowers.
Pruning and maintenance
Pinch young plants at the 4-5 leaf stage to encourage denser branching. Regularly remove spent flowers to extend flowering and stimulate new buds. At the end of the season, you can cut the plant back.
Diseases and pests
Dyer's chamomile is generally robust. However, watch for powdery mildew in case of excessive humidity or poor air circulation. Spider mites can occasionally colonize it in very dry conditions. Good drainage and adequate ventilation prevent most problems.
Did you know?
Dyer's chamomile owes its name to its flowers rich in coloring pigments: the historical use of this plant dates back to the Middle Ages, when it was used to dye fabrics in intense golden yellow. Once also called 'Dyer's Chamomile,' it represented a precious resource for dyers before the arrival of synthetic dyes.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.