QuestionsHow to growFlowersBulbsDahlias 0 Vote Up Vote Down Charlotte Miley asked 14 years ago I bought some Dahlia Bulbs for the first time at Bloom and now wonder if it’s too late to plant them?!! 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Although it is late, plant them immediately and they will probably flower late, but if you keep them to next year, they will die.