Is snow cloth alyssum sterile?

[Fucksandflowers]

Anyone know?

I got lots of sweet alyssum, 'carpet of snow' I think and looking forward to them self seeding.

I bought more seeds today as there are some sparse spots I'd like to fill in.

They only had 'snow cloth' and I know that some of the newer hybrid varieties are sterile!

Hoping snow cloth is a re seeder..?

My white Alyssum self seeded, but it was the standard variety from the garden centrre.