Bean Climbing French Cosse Violetto (42 ratings) Plants Available Spring and Summer 6 Plants £3.90 Add Delivery Slot: [Choose]Summer 2018 Choose No Of Plants/Plugs Multiples of 6: [Choose]6 Plants/ Plugs12 Plants/ Plugs (+£3.90)18 Plants/ Plugs (+£6.80)24 Plants/ Plugs (+£10.40) Quantity: at £3.90 each 'Cosse violette' is considered a heirloom OP (open polliated) cultivar. Deep purple flowers mature into purple almost black pods. Color is lost during cooking. Can be eaten fresh. 50 days to maturity.