White Spear Bunching Onions have tall, upright, blue-green leaves, thick, cylindrical, white stems; its leaves resist breaking. You can increase the blanched white portion by hilling plants with soil or transplanting deeply (see Leeks). Not as winter-hardy as Evergreen.  Harvest in about 70 days. Germination rate about 80% or better. David’s Garden Seeds is a Veteran owned business that has been offering quality seeds since 2009.