Weld
Reseda luteola · Resedaceae
The gardener's calendar
Ideal time to plant weld: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Deciduous
- Flowering
- June to September
- Adult size
- 60 to 120 cm in height
- Growth
- Fast
- Hardiness
- Hardy down to -15 °C
- Origin
- Mediterranean basin and Western Asia
- Soil type
- Well-drained, chalky, poor to medium
- Life cycle
- Annual or biennial
Care
Light exposure
Weld prefers a sunny position to develop its flowers generously. It tolerates partial shade but flowering will be less abundant. Choose a sheltered location away from strong winds that could weaken the stems.
Watering
Water regularly after planting to establish a good root system. Once established, the plant is relatively tolerant of drought and only needs watering during prolonged dry periods. Avoid excess moisture which would promote disease.
Soil and preparation
Weld appreciates well-drained soils, ideally chalky or neutral. Poor soil suits it perfectly; a moderate compost addition is sufficient. Prepare the seedbed by removing stones and loosening the soil to a depth of 15 to 20 cm.
Fertilizing
Weld is not demanding in nutrients. A light application of balanced fertilizer in spring is enough. Too much fertilization would promote leaf growth at the expense of flowering.
Pruning and training
No real pruning is necessary. Remove spent flowers to extend blooming if desired. After flowering, you can leave a few flowers to seed for natural sowing the following year.
Diseases and pests
Weld is generally little affected by diseases. Watch for powdery mildew in case of excessive humidity, and aphids in spring. Good air circulation and watering at the base reduce the risks.
Did you know?
Weld has long provided an intense natural yellow pigment widely used by medieval and Renaissance dyers to color fabrics. This modest plant thus colored clothing throughout Europe and remains a botanical symbol of traditional textile craftsmanship.
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.