Answer: Sounds as though a fungal disease is attacking the newly formed flower buds on your Dahlias. Place them in the sunniest spot you can find and try not to splash water on the leaves when you water. Pick off any affected buds or leaves as soon as you notice they look sickly. Dahlias thrive in full sunshine when given ample moisture. See if a change of location and watering practices will make a difference in the performance of your plants.
Q&A Library Searching Tips