Sweet Pea Erewhon Seeds - 12 Flower Seed Stunning tricolour flowers in Rose, Mauve & Cream. Beautifully scented, with an unusual unique look. Climber. 1.8m. Hardy Annual. Start in pots in January inside, or sow direct in spring (March-May). Will grow almost anywhere in any soil. A trellis is recommended. Sweet Pea Erewhon Seeds - 12 Flower Seed