Chaerophyllum bulbosum
Chaerophyllum bulbosum · Apiaceae
The gardener's calendar
Ideal time to plant chaerophyllum bulbosum: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Deciduous, finely cut and feathery
- Flowering
- Summer (June to August), small white flowers in umbels
- Adult size
- 60 to 90 cm tall
- Growth
- Fast (biennial cycle)
- Hardiness
- Good, down to -15 °C
- Origin
- Central and Eastern Europe
- Soil type
- Rich, moist and well-drained
Care
Regular watering
Keep the soil moist during growth, particularly in dry periods. Water moderately but don't let the soil dry out completely. In winter, reduce watering as the plant goes dormant.
Exposure and light
Place bulbous chervil in partial shade to partial shade for optimal growth. Too much direct sun can slow down bulb formation. Choose a location sheltered from strong winds.
Soil preparation
Prepare rich, loose, moist soil with plenty of organic matter. Amending with well-decomposed compost promotes bulb development. Ensure good drainage to prevent root rot.
Fertilization
Apply balanced fertilizer in spring when growth resumes. Moderate potassium boosts bulb development. Avoid excess nitrogen which would promote foliage at the expense of the bulb.
Flower removal
Remove spent flowers to channel energy into bulb formation. If you don't want seeds, eliminate the umbels before they fully mature.
Problem prevention
Watch for bulb rot if humidity is excessive. Good air circulation and well-drained soil limit fungal diseases. Slugs can damage young foliage.
Did you know?
Bulbous chervil was once grown in Eastern Europe as a forgotten vegetable: its white, sweet bulb was eaten cooked, with a subtle hazelnut-like flavor. A discreet and delicate plant, it almost disappeared from modern gardens, though it's regaining interest among enthusiasts of heritage plants and horticultural biodiversity.
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.