This year I’m going for Lathryrus odoratus ‘Matucana’ and Lathryrus odoratus ‘King Size Navy Blue’.
I’ve grown Matucana before and just love its intense fragrance. The flowers are a deep blue and purple and are slightly smaller than more modern hybrids but this doesn’t take anything away from it.
My second choice is King Size Navy Blue. I’ve not grown it before but it has large, really dark blue flowers on long stems which I think sounds wonderful. It is supposed to be highly fragrant but if it isn’t I think the large, blue flowers will more than make up for that.
Take a look at our article How to Grow Fragrant Sweet Peas to find out how to get the best from your Sweet Pea seeds.