"Unlocking the Secrets: Troubleshooting Hydrangea Blooming Issues"
Hydrangeas may fail to bloom due to various reasons, including inadequate sunlight, overcrowding, and improper pruning. While hydrangeas require at least four hours of sun, excessive heat can hinder blooming. Proper spacing is crucial, with each hydrangea needing a 4-foot hula hoop's worth of space. Pruning time depends on the hydrangea variety, with smooth leaf and panicle hydrangeas pruned in late winter or early spring, big leaf and mountain hydrangeas left unpruned, and climbing and oak leaf hydrangeas blooming on last year's wood. Late frosts can also damage flower buds. Keeping a garden journal with plant varieties can help troubleshoot issues.