Hardy Annuals & Repotting

Hi All,

I'm sowing some hardy annuals in the autumn this year for the first time (poppies, cornflowers, sweet peas) and was wondering about whether to repot them into bigger pots with more nutritious compost before the frost sets in, or rather just leave them in their tiny pots with the seed compost until they start to grow again in spring. I think it's a "no" for the sweet peas, having looked at the famous sweet pea thread, but not sure about the others.

Also, they're not annuals, but I have some catmint and some violas that I sowed in late summer /early autumn, about which I have the same question!

Thanks,

Owen.