Q.azalea and hydrangea OUTDOOR container plants
I asked a question on why there are no flowers on plants and advice came back with reference to indoor plants, but I said mine were outdoors in container and no flowers for a couple of years. Can you advise?
Certified GKH Gardening Expert
Have they been fertilized and, if so, could you have used too much nitrogen? Usually, when plants don't bloom, fertilizer can be to blame. Too much nitrogen can lead to lush, green growth with little to no blooms. This can normally be offset with the addition of high-phosphorus fertilizer, or bone meal. Here is more information on that: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm