New Blueberries With Red/Purple Foliage
I recently planted 4 new "Sweetheart" blueberry bushes. They were entirely green originally, but as shown in this picture, their foliage is turning red/purple. Any ideas? I can tell you the following facts that may help in the diagnosis:
- Temperatures are averaging around 80/60 (day/night)
- The soil has been kept moist but not waterlogged.
- The pH is currently 6.5, but I have added plenty of sulfur and peat to drop it over time.
- I have gently removed and replanted them several times as I have worked in soil amendments.
What do you think? Nutrient problem? Water problem? Fungus? pH unhappiness? Transplant shock? Something else?