If a plant is not performing鈥攇rowing/producing鈥攁s expected, something’s wrong. It could be as simple as too much shade or too much sun. It could be too much fertilizer, esp high nitrogen fertilizer, which will result in beautiful foliage but few if any flowers. It could be too much moisture鈥攐r too little moisture.
Do you know what kind of hydrangea it is? That would be a start. In the meantime, are you pruning it? The buds for the next year’s flowers are formed this year. Pruning, even severe cold can kill flower buds (but seldom affect leaf buds).
And, how is the pH of the soil?? Have they got enough compost? There may not be a good, solid explanation, but moving them to a different 鈥渆nvironment鈥 will at least give you a point of comparison.
If a plant is not performing鈥攇rowing/producing鈥攁s expected, something’s wrong. It could be as simple as too much shade or too much sun. It could be too much fertilizer, esp high nitrogen fertilizer, which will result in beautiful foliage but few if any flowers. It could be too much moisture鈥攐r too little moisture.
Do you know what kind of hydrangea it is? That would be a start. In the meantime, are you pruning it? The buds for the next year’s flowers are formed this year. Pruning, even severe cold can kill flower buds (but seldom affect leaf buds).
And, how is the pH of the soil?? Have they got enough compost? There may not be a good, solid explanation, but moving them to a different 鈥渆nvironment鈥 will at least give you a point of comparison.