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Fritillaire sewerzowii ou Korolkowia sewerzowii

Collector's item

Fritillaria sewerzowii

Fritillaria sewerzowii
Sewerzow’s Fritillary

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More information

A beautiful perennial bearing elegant brick-red bell-shaped flowers in spring. It is a hardy plant.

Flower size

4 cm

Height at maturity

30 cm

Spread at maturity

10 cm

Exposure

Sun

Hardiness

Hardy down to -23.5°C

Soil moisture

Moist soil

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Best planting time September to October

Recommended planting time September to November

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Flowering time March to July

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Description

Fritillary sewerzowii, also known as Korolkowia sewerzowii, is a perennial bulbous plant that blooms from March to July. This majestic plant has sturdy stems that are 30cm (12in) long and bear elongated clusters of 6 to 12 bell-shaped flowers that are 1 to 4cm (2in) long. These elegant flowers are brick-red at the base and purple on the inside. They are mostly solitary or in small numbers and consist of 6 similar tepals with 6 stamens. At the base of the tepals is a nectary that emits a pleasant fragrance that repels rodents.

Originally from Central Asia, Fritillary sewerzowii is very hardy. It has beautiful grey-green foliage along the stem. The lanceolate leaves, 8 to 15cm (3 to 6in) long, are alternate, opposite at the base of the stem. This sewerzowii variety can reach a height of 30cm (12in) and a width of 10cm (4in) when fully grown.

Fritillaria thrives best in a continental-type climate with dry winters and summers and humid springs. It is an ideal perennial for rockeries, rocky banks, and raised beds. It is also found in dry meadows and thickets. Plant it in tulip beds, where they will provide height and protect the tulips from rodent attacks.

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Fritillary: planting, cultivation, maintenance

Family sheet

Modified the 4 August 2025 by Virginie T. 15 min.

Fritillary: planting, cultivation, maintenance

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Alongside rare and wild species such as the Pyrenean Fritillary, there are tolerant and easy-to-grow species of <a href="https://en.promessedefleurs.eu/spring-bulbs/spring-bulbs-by-variety/fritillaria.html" target="_blank" rel="noopener">Fritillaries</a> in our gardens. If Fritillaria imperialis brings to mind the imperial crown in a copper vase, the famous painting by Vincent Van Gogh, this imposing and architectural spring bulb also inevitably draws all eyes in the garden. In March, for the earliest varieties and until May, their bell-shaped flowers, usually red-orange, purple, sometimes white or patterned like a checkerboard, emerge from grassy tufts to herald the arrival of spring. Whether they are <a href="https://en.promessedefleurs.eu/spring-bulbs/spring-bulbs-by-variety/fritillaria/fritillaria-imperialis-rubra.html" target="_blank" rel="noopener">Fritillaria imperialis</a>, <a href="https://en.promessedefleurs.eu/spring-bulbs/spring-bulbs-by-variety/fritillaria/fritillaria-meleagris-snake-s-head-fritillary.html" target="_blank" rel="noopener">Guinea Fritillary or méléagris</a>, Persian Fritillary, Fritillaria uva-vulpis, their spring flowering never goes unnoticed. Ranging from 20 cm to 1.5 m in height, fritillaries can be placed anywhere according to their growing requirements, whether in borders, pots, along pathways, at the base of deciduous trees, in rockeries, or scattered throughout the short grass meadow. The Imperial Crown or Fritillaria imperialis has been used for a long time against moles. This beautiful repellent emits a strong odour in the soil that deters rodents, but that’s not its only advantage: it is one of the largest spring bulbs! With their atypical, highly structured silhouette and crown-shaped yellow or orange flowers, Imperial Crowns add height and exotic accents to your borders and centrepieces. The smaller varieties, such as Fritillaria michailovskyi, are easy to grow in sunny border beds, rockeries, or pots. In non-burning sun or partial shade, they thrive in all our gardens, where some easily naturalise, forming flowering clumps over time. In the heart of spring, they create scenes filled with originality or simplicity alongside other spring bulbs, such as daffodils, jonquils, wood anemones, hyacinths, or tulips. Discover all their planting and care secrets, as well as <a href="https://en.promessedefleurs.eu/spring-bulbs/spring-bulbs-by-variety/fritillaria.html" target="_blank" rel="noopener">our collections of Fritillaries</a>, some of which are very rare and exclusive varieties perfect for transforming a sunny border, brightening a rockery, flowering a cool woodland, or creating beautiful spring planters.

Plant habit

Height at maturity 30 cm

Spread at maturity 10 cm

Growth rate normal

Flowering

Flower colour red

Flowering time March to July

Flower size 4 cm

Foliage

Foliage persistence Deciduous

Foliage colour medium green

Botanical data

Genus

Fritillaria

Species

sewerzowii

Family

Liliaceae

Other common names

Sewerzow’s Fritillary

Origin

Cultivar or hybrid

Product reference • 544991

Planting and care

Fritillaria sewerzowii is a robust plant. However, it does not tolerate rain during its dormant period. Place in an alpine greenhouse or under a frame to protect it from rain in summer and keep the bulbs almost dry. It does not tolerate humidity. It appreciates full sun and can withstand drought well. It is suited for continental climates. Plant the bulbs as soon as possible in fairly fertile and very well-drained soil that is dry in summer. This soil should remain compact. When planting, place it 20cm (8in) deep and space the bulbs about 40cm (16in) apart. Just like lilies, to which it is related, fritillaria can be attacked by lily beetles (Lilioceris lilii) that devour the leaves. It is also susceptible to slug attacks.

Planting period

Best planting time September to October

Recommended planting time September to November

Intended location

Type of use Border, Free-standing

Hardiness Hardy down to -23.5°C (USDA zone 6a) Show map

Ease of cultivation Experienced

Exposure Sun

Soil pH Neutral, Calcareous

Soil moisture Moist soil, well-drained

Care

Soil moisture Moist soil