Best Time to Plant Grass Seed for Healthy Lawns Rivendell Distribution Pollinator Prize Native Nebraska Flower Seed Mix 2.03 oz Prairie L BuyNebraska.com How fast do coleus seeds grow? (Details in comments) : r houseplants Not every seed grows the moment it's planted. Sometimes the kind word, the encouragement, the prayer, or the act of love you share today may not bear fruit until much later.