Burpee Wildflower Bag American at Tractor Supply Co Italian Terracotta Super Bloomer Pot Northcote Pottery Two Easy Ways to Speed up Cilantro Germination: , 1. Gently crush the seeds using a mortar & pestle., 2. Soak seeds in water for 24 hours prior to planting., Coriander seeds have a hard outer Sprayers are in stock 1, 2, and 3 gallon options depending on what you're working on.