They usually flower fairly young. If it isn't flowering, then there may be an environmental factor affecting blooms.
They need to be planted where they can receive full sun. The more sun the better the flowering. If the tree is shaded, it may not produce well.
Soil nutrients are important, too! If the area contains too much nitrogen and not enough phosphorus and potassium, then it may not allow for proper flowering. The same can be said for soil that is too alkaline, or too acidic. The soil needs to be pretty neutral at 7 or near it.
This article will help you to take a soil test: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
This article will help you to care for these trees: https://www.gardeningknowhow.com/ornamental/trees/cassia/growing-cassia-trees.htm
I planted a popcorn cassia plant outside this summer and it has grown to about 5 foot. Is there a way to transplant or save anything so I can start another plant to bring inside for next summer as I know it will not survive our harsh winters????
You can dig it up and put it in a pot to bring indoors for the winter. Cut it back some so it's not so hard to handle. Make sure you get most of the rootball. Water well and let it acclimate for about a week before bringing in. Then site it in a south or southeast facing window. Water only as needed.
Here is more info on popcorn cassia:
https://www.gardeningknowhow.com/ornamental/flowers/popcorn-cassia/popcorn-cassia-information.htm
My 1 year old cassia tree has leaves turning yellow with tiny brown spots. Brown spots are also on some of the green healthy leaves. Does anybody know what this is and what is going on? I don't wanna lose this tree and I actually have 2. Is not enough water or is it a disease.
That is a bacterial or fungal blight. Common this time of year, but with some perseverance and time, you can get rid of it.
Your first line of defense will be to clean up any debris around the tree. Then trim off as much of the affected growth as possible. Treat with a fungicide/bactericide, and apply DOLOMITIC LIME and WETTABLE SULFUR, according to all packaging instructions, to the soil around the tree.
This should suffice for treatment, but you may need to do it for a few seasons until it is cleared.
These articles will help: https://www.gardeningknowhow.com/garden-how-to/info/applying-bactericide-to-plants.htm
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/plant-problems/disease/black-spot-fungus.htm
This collection of articles will help you with the care of the tree: https://www.gardeningknowhow.com/category/ornamental/trees/cassia
I planted a standardized Cassia tree over a new septic drain field. The system is about 3-ft below grade. The Cassia is growing into a huge healthy ball and blooms twice a year. My question is, have I made a big mistake and the roots have gone into the drain field?
More than likely. This tree has quite the root system, and will easily clog septic lines and systems.
I would contact your local extension service for help in this situation:
planted three versions, one multi stalked, one single stalk and one single stalked that split in tow. Planted in south Florida while in bloom in the fall and slightly trimmed in spring on the city right of way in front of my house. if I cut the center stalk to keep it short and small when should I do this ..I was waiting for it to fill out. The stalks are now no more than 3 inches wide kinda of leggy tall..need to know if they will grow a wide and tough root system that will threaten the water lines ten feet away? Please reply asap. Thank you. Attached are the three types I planted.
There is no cut and dried answer to this question. You need to contact your local county extension service about how these might affect the water system there. The trees and their roots will grow according to weather, soil conditions, pruning, feeding, and other specific conditions. Here's a Florida article about cassia; it does not mention intrusive root problems: https://hort.ifas.ufl.edu/database/documents/pdf/tree_fact_sheets/casfisa.pdf
Here's an article about how to prune them: https://www.gardeningknowhow.com/ornamental/trees/cassia/cassia-tree-pruning.htm
I have tried for 4 years to grow this shrub. I have 6 in beginning pots now, its been 2 weeks and nothing! I was wondering if you had any growing now that I could purchase?
We don't sell plants or merchandise here, only free gardening advice. If your local nurseries don't carry the plant, have you tried online nurseries (besides us?)?
What fertilizer, if any, should I apply, how much to apply, work into soil or not? Sorry my camera is not working currently.
Your soil may need more iron. The tree likes a balanced pH, so you may want to do a soils test and see if there's something like iron that's lacking in the soil. Other possibilities are more serious, so let's wait to see if amending your soil will help.Read these articles for additional info:
https://www.gardeningknowhow.com/plant-problems/environmental/leaf-chlorosis-and-iron.htm
https://www.gardeningknowhow.com/ornamental/trees/cassia/growing-cassia-trees.htm