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Skirret

Smyrnium olusatrum · Apiaceae

The gardener's calendar

The right move for September

Ideal time to plant skirret: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

JFMAMJJASOND Planting

ID card

Foliage
Deciduous
Flowering
Spring (April-May)
Adult size
60 to 90 cm in height
Growth
Fast
Hardiness
Hardy down to -10°C
Origin
Mediterranean basin
Soil type
Well-drained, rather rich
Family
Apiaceae

Care

Watering

Water regularly during the growing season to keep the soil moist but not waterlogged. Reduce watering in winter. In dry climates, weekly watering in summer promotes tender leaf production.

Exposure

Plant skirret in a sunny to part-shaded location. Slight afternoon shade in summer can prevent too-rapid bolting and preserve leaf tenderness.

Soil

Prepare soil rich in organic matter, well-drained and moderately deep. Adding compost at planting improves structure and fertility. Avoid compacted or waterlogged soils.

Pruning and harvesting

Harvest young leaves and tender petioles progressively from spring onwards. Pinch off the flower apex if you wish to extend foliage production. Remove unwanted flower stems to concentrate energy on leaf growth.

Fertilising

A moderate application of balanced fertiliser in spring supports growth. Too much nitrogen encourages foliage at the expense of flavour. Prefer enrichment with compost or organic amendments.

Diseases and pests

Skirret is generally robust. Watch for aphids and whiteflies indoors or under cover. Good air circulation and regular hygiene prevent powdery mildew. Avoid stagnant excess moisture.

Did you know?

Skirret was highly valued by the Romans under the name 'siser' and regularly featured in medieval European gardens. Gradually forgotten from the culinary repertoire, it is rediscovering interest among contemporary chefs seeking ancient flavours; its crunchy petioles recall celery with a subtle aniseed note.

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.