|Astrid Thomas is a shrubby perennial or annual depending upon climate. It is a member of the daisy family, native to South Africa with blue daisy flowers, over 1 inch wide with yellow centers. It is more compact than the species, with small, green, oval, aromatic leaves. Will continue to bloom strongly if dead flowers are removed regularly. In late summer prune back to encourage new wood for flowering. Excellent container plant, requires full sun, and moderate watering.