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International Flower Bulb Centre
CROCUS speciosus 'Conqueror'
Large Autumn Crocus
One of the largest and most diverse crocuses, Crocus speciosus is native from Turkey to Central Asia. Its cultivar 'Conqueror' has rich lavender-blue flowers.
A small herbaceous perennial that grows from a bulb-like storage organ known as a corm, Crocus speciosus sends up one or two fragrant, goblet-shaped flowers in early to mid autumn. Held singly atop ankle-high, stalk-like floral tubes, the up-facing flowers have six "petals" (or segments) in two whorls. In bright sun they open wide to reveal a white eye, yellow anthers, and orange-yellow stigmas. The grassy, medium-green foliage emerges after flowering and usually lingers into spring.
Grow this alluring crocus in full to partial sun and fertile, well-drained soil. It needs several weeks of winter chill to grow and flower well. Plant the corms in late summer at a depth of two to three times their height. This crocus is lovely in clumps in the rock garden or perennial border, or dotted among evergreen groundcovers for protection from wind and feet. Self-sowing readily, it is perfect for naturalizing in a lawn or woodland edge.
8 - 1
4 - 8
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Bulb or Corm or Tuber
Full Sun, Partial Sun, Partial Shade
3"-5" / 7.6cm - 12.7cm
2"-4" / 5.1cm - 10.2cm
Early Fall, Fall
Russia/Siberia, Turkey, Central Asia
Acidic, Neutral, Alkaline
Clay, Loam, Sand
Green, Dark Green
Container, Foundation, Lawns and Turf, Mixed Border, Rock Garden / Wall, Wildflower
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