This PBS wiki page describes Spring Blooming Crocus species J-S.
Crocus index - Fall Blooming Crocus A-H - Fall Blooming Crocus I-O - Fall Blooming Crocus P-Z - Spring Blooming Crocus A-I - Spring Blooming Crocus T-Z
Crocus korolkowii blooms throughout January here in my North Georgia, USA home. Often this plant starts before Crocus laevigatus is finished - providing perfect overlap. I have it growing in both very well drained soils and moister soils (although never approaching wet)and it has performed with mixed results in both locations. Photos by Steve Burger taken January 2007.
Crocus kosaninii is found in Southern Serbia in lowland oak, juniper and hawthorn forests. It is a member of the C. vernus complex and characterized by a yellow throat. Photos by Arnold Trachtenberg.
Crocus leichtlinii is native to Turkey in mountain areas that are very cold in winter and very hot and dry in summer. In cultivation it typically flowers very early (shown here in January in northwestern Oregon) and should be kept quite dry in summer (here, in a bulb frame, plunged in sand). It is notable for its pure blue color, best seen when the flowers are not fully open since the blue is mostly on the reverse of the tepals. These plants were grown from seed obtained from the Goteborg Botanic Garden, a KPPZ collection, and are about 8 years old. Photo by Jane McGary.
Crocus malyi grows in grassy rocky places in the western Balkans. It has long white flowers with a yellow throat and a bright orange style. It appeared in my garden in Northern California before the leaves the end of January 2006 when we were getting a lot of rain and lasted only briefly. The leaves appeared in February. Photos by Mary Sue Ittner.
Crocus michelsonii is native to the Kopet Dag range of Turkmenistan and Iran, growing on stony hills and sagebrush steppe at mid elevations. The plants pictured were grown by Jane McGary from seed collected in 2000 by Jan Jilek. They are kept in a bulb frame, fairly dry in summer, and here are flowering in late January after a prolonged period below freezing, when they were covered. The flowers are large and a beautiful shade of blue, and the plants seem robust. Photo by Jane McGary.
Crocus rujanensis is shown flowering in a bulb frame in Oregon in late January. These plants were grown from seed supplied by Jim & Jenny Archibald. Photo by Jane McGary. This species has purple flowers with a yellow throat and is from Serbia and Macedonia.
Crocus sieberi is a spring flowering crocus. Three forms which adapt well to cultivation in UK gardens, increasing to form clumps when suited.
Crocus sieberi ssp. atticus is from Greece and has lilac-blue flowers. Photograph by Tony Goode.
Crocus sieberi ssp. sublimus is from Greece, Macedonia, Albania and Bulgaria.
Crocus sieberi ssp. sublimus 'Tricolor' - Photos #1-3 are taken by Mark McDonough of plants flowering in his garden, spring 2002, Pepperell, Massachusetts, USA. The overhead view, as well as the profile views reveal the beautiful coloration of this fine crocus. This cultivar adapts well to cultivation in UK gardens forming clumps. Photo #4 is taken by Arnold Trachtenberg and #5 is taken by Tony Goode.
Crocus sieberi 'Bowles White', photographed by Tony Goode.
Crocus sieberi 'Hubert Edelsten' is a cross between ssp. atticus and ssp. sieberi, photographed by Tony Goode.
Crocus index - Fall Blooming Crocus A-H - Fall Blooming Crocus I-O - Fall Blooming Crocus P-Z - Spring Blooming Crocus A-I - Spring Blooming Crocus T-Z