Idaho Blue-Eyed Grass Seeds - Moody Blues These flowers are perfect for decorating rockeries and flower borders Don’t mistake this for a grass! The Idaho Blue-Eyed Grass Seeds - Moody Blues is a cluster-forming, semi-evergreen plants that bears bright blue flowers with darker petals and golden centres. These flowers are perfect for filling rock garden displays with colour or containers and patio pots. As the Idaho Blue-Eyed Grass Seeds - Moody Blues is so versatile, it can be grown on borders to complement your driveway or at the front of flower borders. Growing to a height of 11–20cm (4–8) and spread 21–30cm (8–12) these flowers will look spectacular growing in your flower beds too! Loved by bees and other pollinators, these flowers will be a hive of activity in no time.