Posted: 03/06/2012 at 19:32
Can I just say by way of indicating just how hardy sweet pea seedlings are....even if they are frozen in their pots and lying prostrate, they will soon recover when temperatures move above freezing again. Just be very careful with watering during very cold snaps, they don't like their roots encased in a block of ice.
I always say the one golden rule of successful sweet pea growing is 'DON'T CODDLE'. 