The Difference is JustSeed
Alyssum - Carpet of Snow
This is a great rockery plant, with pure white flowers. It is a compact, dwarf type, which is very vigourous.
Sow the seeds from March onwards to get flowers the following year.
Flower - Alyssum - Rosie O'Day
Flower - Alyssum - Royal Carpet
Flower - Alyssum - Snowdrift
Flower - Alyssum montanum - Mountain Gold