I planted these 4 hydrangeas last summer. My backyard is north facing and we’re in Toronto. They get good sun for 3/4 of the day. They are not growing for some reason though. Other hydrangeas in our area already have flowering start. We water them well We’ve had a good amount of rain and we water them when there’s no rain. We fertilized them with 20-20-20 a couple of weeks ago. Does anyone know what’s wrong?
by mdaia