Growing guide

How to grow lathyrus

Discover how easy Lathyrus are to grow. Whether raising sweetly-scented annual sweet peas or cultivating perennial peas, this page will help you get started.

Save to My scrapbook

Quick facts

  • Easy to grow
  • Flowers mostly in summer
  • Sweet peas need sowing every year, but perennial Lathyrus last many years
  • Prefers full sun in fertile soil
  • Provide support for climbers
  • Deadhead to prolong flowering
  • Grow from seed, though perennials can also be divided
  • Lathyrus latifolius (everlasting pea) is particularly attractive to the brimstone butterfly

All you need to know

Before you get started
Ongoing care
Pruning and training
While we think all this information will be helpful to you, we always recommend to read the instruction labels on your plants.

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.