Laxton's Progress #9 English Shell Pea. A leading garden pea with short vines and plump pods that hold dark-green peas of excellent quality. Small 15-20” plants produce heavy yields of long pods with up to nine peas per pod (hence the name). An improvement over the original Laxton’s Progress with a high resistance to wilt. Compact plants • 4-5” pods. (Pisum sativum). Maturity 60 days.