Q.How Can I Bring My Washington Navel Back to Normal
I planted a 15 gallon Washington navel orange tree. It started to lose all the leaves and then, all the flowers with fruit. Some branches turned brown and died. I have watered it and also used root stimulator. How can the tree be saved?

Certified GKH Gardening Expert
It sounds like it may be suffering from a lack of water. If it became over dry for a period, then it would react this way. Or if there is a problem with the roots, this could also cause this.
If the watering issue is corrected and the stems are still alive, the tree will recover. These articles will help you:
https://www.gardeningknowhow.com/plant-problems/environmental/how-to-tell-if-a-plant-is-dead-and-how-to-recover-an-almost-dead-plant.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/leaves-falling-off-citrus-tree.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/tip-on-water-requirements-for-citrus-trees.htm