Crocus speciosus Cassiope
Crocus speciosus Cassiope
Crocus speciosus Cassiope
Bieberstein's Crocus
Well received; everything is in place; now we just wait for it to sprout.
Claude, 10/10/2025
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Description
Crocus speciosus 'Cassiope' is a captivating variety with autumn flowering. Its large, deep violet blue flowers are adorned with darker veins, while the bright orange stigmas on a pale-yellow throat add a vibrant touch. It develops dense green leaves that emerge after flowering. They are characterised by a silver-white central stripe, adding an additional dimension to the appeal of this variety. This resplendent cormous plant creates an impressive visual spectacle when planted en masse.
Crocus speciosus belongs to the Iridaceae family. It is native to the mountainous regions of the eastern Mediterranean, northern and central Turkey, the Caucasus, northern Iran, and Crimea. The 'Cassiope' variety reaches a height of 12 to 15cm (5 to 6in). It is appreciated for its vibrant flowering in autumn, in October and November. It produces dense green leaves with a silver-white central stripe. The leaves emerge after flowering, offering additional interest to this plant. The foliage emerges from the ground in late winter and disappears in late spring. The lavender-blue cup-shaped flowers, with darker violet veins, pale-yellow throat, and orange stamens, provide a striking contrast and remarkable presence in the garden. In addition to its aesthetic aspect, this variety is attractive to bees and other pollinators in the garden. The "bulbs" here are corms. A corm is an underground storage organ in plant morphology that resembles a bulb but is formed of a swollen stem surrounded by scales.
Crocus speciosus 'Cassiope' thrives in sunny locations where it naturalises easily. Plant the bulbs in August or September for flowering in the same year. This crocus adds a vibrant touch of colour to a flower bed or a lawn in autumn. You can plant it in groups in border plantings or rock gardens. Plant it with other perennial or bulbous plants with autumn flowering, such as colchicums or Naples cyclamen, other autumn wonders that are not used enough.
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Plant habit
Flowering
Foliage
Botanical data
Crocus
speciosus
Cassiope
Iridaceae
Bieberstein's Crocus
Cultivar or hybrid
Planting and care
Plant Crocus speciosus before 20 September and they will flower as early as the same autumn! Plant your bulbs in a warm, south or west-facing position, at a depth of 15cm (6in) and spaced 8cm (3in) apart. They prefer well-drained soil. If your garden soil is too heavy, incorporate some sand at the time of planting. The first cold spells will bring forth their flowers. They will faithfully return every year.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.