Yellow rocket
Barbarea vulgaris · Brassicaceae
The gardener's calendar
Ideal time to plant yellow rocket: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Evergreen to semi-evergreen
- Blooming
- April to June, bright yellow flowers
- Adult size
- 30 to 60 cm in height
- Growth
- Fast
- Hardiness
- Very hardy, down to -15°C
- Origin
- Europe and Mediterranean basin
- Soil type
- Well-drained, tolerates poor soils
Care
Watering
Water regularly during active growth period, especially in summer. Barbaraea appreciates moist but well-drained soil. Reduce watering in winter, maintaining just minimal moisture.
Light and Exposure
Place barbaraea in full sun or partial shade. It develops ideally with at least 4 hours of direct sunlight daily. A sunny exposure intensifies the flower coloration.
Soil and Preparation
Prepare well-drained soil, ideally rich in organic matter. Barbaraea tolerates chalky soils and poor environments. Loosen the soil before planting to facilitate root establishment.
Pruning and Cutting
Remove faded flowers regularly to encourage new blooming. At the end of summer, cut back stems lightly to maintain a compact form. Clean up dead or damaged foliage.
Fertilizer and Nutrition
Apply a balanced slow-release fertilizer in spring. Barbaraea is not demanding: moderate feeding is sufficient. Avoid excess nitrogen which would promote foliage at the expense of flowers.
Pests and Diseases
Barbaraea is generally robust and little susceptible to diseases. Watch for aphids and flea beetles which appreciate Brassicaceae. In case of attack, intervene quickly with environmentally friendly solutions.
Did you know?
Common barbaraea is also called 'St. Barbara's herb' in reference to the Christian tradition of growing its seeds on St. Barbara's day to predict harvests. Formerly, this plant was consumed as a leafy vegetable during winter, appreciated for its remarkable hardiness and growth even in cold weather.
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.
Add this plant to my garden →Plants from the same family
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- WasabiEutrema japonicum
Tips generated and checked by Viridia — adapt them to your local climate.