Lathyrus latifolius 39rosa perle39 is a quick45growing and problem45free perennial sweet pea the much45admired everlasting sweet pea is the perfect choice if you want stunning long45lasting displays of magnificent colour throughout the summer 39rosa perle39 is covered with sprays of unscented rosy45pink blooms this easy45to45grow climber makes an excellent cottage garden border plant grow this easy climber against a sunny fence or allow it to scramble thr