McGregor's Mt Cook Lily NZ Native Seed SKU: 135317 MODEL: M4600 Error. try again later You've successfully joined the club $ 4 .98 each Mitre 10 MSAvailable at Mitre 10 MEGA and selected Mitre 10 stores. Variants The world's largest buttercup! In spring magnificent white buttercups spring from big glossy saucer shaped leaves. A hardy plant, however it does delight in cool moist conditions and partial shade. Features and benefits Grows up to 1.5m.