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Laserpitium latifolium

Laserpitium latifolium · Apiaceae

The gardener's calendar

The right move for September

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

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ID card

Foliage
Deciduous
Flowering
June to August, white flowers in umbels
Adult size
80 to 150 cm in height
Growth
Moderate to fast
Hardiness
Very hardy (down to -20°C)
Origin
Mountains of central and southern Europe
Soil type
Well-drained, chalky or neutral, rich in humus

Care

Exposure

The broad-leaved Laserpitium prefers a partially shaded or sunny location, ideally with slight afternoon protection in very hot regions. It adapts well to shadier areas where it remains vigorous. An east- or north-facing exposure suits it particularly well.

Soil and planting

Plant this species in well-drained soil rich in organic matter, preferably slightly chalky or neutral. Adding compost at planting time helps establish it. Avoid overly compact soils or those that remain waterlogged.

Watering

Water regularly during the first year, then moderately once established. During the growing season (spring-summer), keep the soil moist but not soggy. Reduce watering in autumn and winter; the plant tolerates dryness well once it's well-rooted.

Fertilizing

Well-rotted compost applied each spring is usually sufficient. In poor soils, a balanced diluted fertilizer can be applied once or twice during the growing period. Avoid overdosing, which would promote foliage at the expense of flowers.

Pruning and maintenance

Cut back faded stems after flowering to encourage better branching and a more compact form. In late autumn or early winter, cut the plant down to ground level since it's deciduous. No severe pruning is necessary; simply remove dead parts.

Diseases and pests

This robust plant is rarely affected by common pests and diseases. Ensure good drainage to prevent root rot from stagnant moisture. In dry, well-ventilated conditions, it remains very healthy without special treatment.

Did you know?

The name "Laserpitium" comes from ancient Greek and refers to laser, an aromatic gum-resin highly prized in antiquity. This plant, long confused with the true source of the now-extinct laser, fascinated medieval botanists and herbalists, who attributed medicinal properties to it despite persistent doubts about its actual uses.

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.