Q.I Have A Silk Floss Tree That Is Very Healthy And Several Years Old, But It Does Not Flower In The Fall. Do All Silk Floss Trees
flower and is there a soil amendment that I should add? I am a California Master Gardener. Thanks for your help.
Certified GKH Gardening Expert
Yes, they are very prolific bloomers! Your issue could be an indication that the nutrition ratios in your soil could be a bit off, namely low in phosphorus and potassium and high in nitrogen.
It could also indicate a low pH, or acidic soil.
I would recommend testing your EC and nutrient profile, as well as pH. Then amend accordingly.
These links will help:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/ornamental/trees/silk-floss/floss-silk-tree-planting.htm
https://www.gardeningknowhow.com/ornamental/trees/kapok/kapok-tree-pruning.htm