Over fertilization? Or deficiency? : r houseplants Harvesting dahlia seed is part instinct, part detective work and today, were cracking open the clues hidden inside the seed heads., Not every dried bloom is ready. Some are all costume, no content. Delightful Dahlias! In the new At Home with Flowers video on the uBloom website we're in the Garden arranging Dinner plate Dahlias grown by flower friend Craig at Z Farms. Learn Growing Marigolds From Seed To Protect the Garden From Pests MIgardener