What is the genome size of Saffron (Crocus sativus)?
Neither NCBI nor Ensembl have a genome project listed for any crocus species, although individual ethidium bromide stained nuclei have been analyzed by flow cytometry, revealing approximately 11.4 pg of DNA per nucleus (warning, pay wall). 

C. sativus is triploid, giving it a C-value of 3.8 pg which works out to a haploid genetic content of about 3.45 Gbp.

(full credit to canadianer for finding the Brandizzi paper)