Sow From - April to June Crop From - June to September Pack Weight - 150g Approx Seed Quantity - 600 Seeds Blue Lake can reach up to 1.5m in height. They produce pencil podded stringless pods of medium green containing pure white beans within, which can be used as haricot beans at the end of the season. Climbing varieties such as this one should be supported in the same way that you would if they were runner beans.