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''Crocus sativus'' thrives in the Mediterranean [[Maquis shrubland|maquis]], an ecotype superficially resembling the North American [[chaparral]], and similar climates where hot and dry summer breezes sweep semi-arid lands. It can nonetheless survive cold winters, tolerating frosts as low as {{Convert|−10|C|0}} and short periods of snow cover. Some reports suggest saffron can tolerate an air temperature range from −22 to 40 °C. Irrigation is required if grown outside of moist environments such as Kashmir, where annual rainfall averages {{Convert|1000|–|1500|mm|in|sigfig=1|abbr=on}}; saffron-growing regions in Greece ({{Convert|500|mm|in|abbr=on|disp=or}} annually) and Spain ({{Convert|400|mm|in|abbr=on|disp=or}}) are far drier than the main cultivating Iranian regions. What makes this possible is the timing of the local wet seasons; generous spring rains and drier summers are optimal. Rain immediately preceding flowering boosts saffron yields; rainy or cold weather during flowering promotes disease and reduces yields. Persistently damp and hot conditions harm the crops, and rabbits, rats, and birds cause damage by digging up corms. [[Nematode]]s, leaf [[rust (fungus)|rusts]], and corm rot pose other threats. Yet ''[[Bacillus subtilis]]'' inoculation may provide some benefit to growers by speeding corm growth and increasing stigma biomass yield.

Translations:Saffron/13/en - Revision history

FuzzyBot: Importing a new version from external source