When sourcing Statice (Limonium), quality is determined by stem length, bloom density, and color vibrancy. For B2B buyers, Grade A typically requires a stem length of 60-80cm and a minimum of 5-7 lateral branches. Ensure the flowers are harvested when 50-70% of the calyxes are open; if harvested too early, they won't bloom fully, and if too late, they become brittle. Check for uniformity in color across the batch and ensure there is no yellowing of the foliage, which indicates poor post-harvest handling.