Why don't the flowers on my banana shrub have any scent? I have 2 banana shrubs in pots that I grew from cuttings (from my main plants). I kept them on a western patio all summer but brought them inside when temps began to drop below 30 degrees at night. About 4 weeks ago, they began to bud. The flowers are now opening but they do not have the banana-like scent, they have no scent at all.The main plants had dropped leaves badly before I brought them inside any they don't have any buds.
It is likely that they didn't have enough fertilizer. This can cause lack of blooms, leaf drop, and many other symptoms. This article will help you with the care of these: https://www.gardeningknowhow.com/ornamental/shrubs/banana-shrub/how-to-grow-banana-shrubs.htm
Leaves are turning yellow have plenty of new buds. Worried we might loose tree which was planted 1 year ago.
Can you include a photo? This will help me to make a diagnosis.
Now that I've read your article, I can see the error of some of my ways, but the bush turned small tree at 5 feet high, is 10+ years old and today I was wondering if this is simply what happens this time of year (North County of San Diego County; Carlsbad/Vista/Oceanside tricity area) especially considering that the yard is mature, the plant is no longer getting as much sunlight as in the past. I've tried giving it iron but it has never helped the yellowing issue.
The plant is evergreen and should not turn completely yellow this time of year. However, the banana tree is susceptible to chlorosis (yellowing). A high soil ph could be a factor since it prefers an acidic, organic soil. Nitrogen especially and other nutrient deficiencies can cause yellowing. It's best not to think and fertilize in terms of a specific nutrient, but rather complete nutrition. Soil testing and prescription amendments are best, but general purpose blended fertilization is next best.
https://www.gardeningknowhow.com/ornamental/shrubs/banana-shrub/how-to-grow-banana-shrubs.htm
the leaves also have some type of fungus like white spots...
Your plant may have powdery mildew or mealybugs. These articles should help. The brown fuzz on immature leaves is normal, though.
https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm
https://www.gardeningknowhow.com/ornamental/shrubs/banana-shrub/how-to-grow-banana-shrubs.htm
What do I do to the Cold damage ends of the Bush. I hate to think the Bush is permanently damaged
While banana shrubs are not hardy, they are rated for zones 9 and 10, and zone 9 should withstand temperatures to 20 degrees F. When the threat of frost has passed, trim off any damaged ends. Here is more:
https://gardeningsolutions.ifas.ufl.edu/plants/trees-and-shrubs/shrubs/banana-shrub.html
https://edis.ifas.ufl.edu/publication/FP403
https://www.gardeningknowhow.com/ornamental/shrubs/shgen/winter-damage-of-shrubs.htm