Plant sweet pea seeds in autumn or spring. Add a mulch around the base of plants to preserve soil moisture. For that reason, we all plant the seeds very early in the winter/spring, as soon as the ground can be worked. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; At its best; At its best: J Plant is not at its best in January F Plant is not at its best in February … Pea netting supported by stout canes is another option, but it’s very difficult to untangle the plants at the end … Join the RHS today and get 12 months for the price of 9 What does define the time when peas are best sown is the soil temperature and this is influenced When you’re ready to plant, simply use a spare piece of guttering to make a furrow just the right size for your seedlings. When you're deciding where to plant which vegetable, there are two good reasons why it's a good idea to locate your peas in a section that receives full sun: * Sunny spots will be the first places to thaw in the spring, and you want to get your peas into the ground as early as possible. Cauliflower Green Pea Care. When using winter field peas to improve very poor soil, mixing a balanced organic fertiliser into the soil before planting will give better results. That’s because when they are picked, their sugars start to turn to starch and so they quickly loose their sweetness and flavour. Can be grown without support because this is a very compact plant. A table displaying which months are best to sow, plant and harvest. How to grow peas Cultivation. For us, the best pea is the climbing variety Alderman.