Enjoyable collection of tasty runner beans runner bean scarlet emperor scarlet emperor is excellent for freezing and a heavy cropper also popular as a show vegetable harvesting time is from august to september runner bean streamline streamline is a reliably heavy and vigorous cropper also suitable for freezing harvesting time is from june to septemberthis collection of jumbo runner beans plants consists of 2 of the most popular varieties scarlet emperor and streamline they are both per