Once peas have reached 5-8cm (2-3in) in height and their tendrils begin to reach out for support, place stakes next to plants. To grow an early crop, try sowing seeds in a length of old guttering ...

The majority of sweet-pea (Lathyrus odoratus) seed that is available is for annual plants, which will only live for one year ...

John Barnard successfully germinated the seeds he gathered and hopes to reintroduce ... that led Mr Barnard to the remaining marsh pea plants. Her book, The Flora of the East Riding of Yorkshire ...