Sweetpeas

I love sweetpeas and grow two long rows of them, each about 10 ft.  For the first time I tried to get ahead of myself in the autumn and sowed some Sarah Raven seeds given to me by a friend.  All have been polished off by mice with expensive tastes.
Anyone any idea if I can sow some more now or would you wait until it is warmer?

Sorry, not a blog really!