Posted: 31/10/2017 at 13:00
Hi NewgardenJacq, you can sow now or wait till the Spring, the advantage of sowing now is earlier blooms, however they will run out of steam and finish flowering before the Spring sown plants.
I sow my seed individually into deep pots 3/4" to 1" deep in MPC and place in a cold greenhouse to germinate. I then move them on to a cold frame once germinated and keep this open unless severe weather is forecast. They're very cold tolerant but won't appreciate being permanently wet or battered by cold winds.
Personally I don't bother presoaking or chitting the seed and I get good germination rates.
There is some really good advice on websites produced by specialist sweet pea growers such as Eagle sweet peas and Matthewmans.