Balloon flowers that are a few years old and only 1 has blooms on it. the rest are beautiful plants but not a bloom on them. Any ideas?
It sounds like there is just a little too much nitrogen in the soil, and not enough phosphorus and potassium.
You can check to see what the soil needs with a soil test:
This was here when I moved in. Looks like Hisbiscus bit too short.
This is a Balloon Flower! Here is an article that will help:
A white balloon flower just now came up in August, it only has four petals and stamens, instead of five. Is there a reason for this? I didn’t plant it, and didn’t know it was there until weeds took over and it popped up. Curious as to why it is different for identification purposes. Thank you!
It's probably just a sport (mutation). You may have discovered a new variety!
Here in the Pacific NW, winters are wet, but usually not too cold. I could cover the container with a larger pot to keep the plants warmer, if necessary.
You can go ahead and plant them. If very cold weather is predicted, cover it to help it make it through the winter. Balloon plant is hardy to zone 3, so it should be fine.