What happened to the sanggumay?

sanggumay last year around February

I am disappointed that this year, the sanggumay in our backyard did not produce any flower. It looked very healthy and I assumed that once the leaves die off, flowers will automatically follow.

But not for this one.

What happened?

Was it because it was suddenly exposed to intense bright light when the mango tree shading it was cut down?

Or was it because it we continued to water it even late into the year when watering should have stopped to hasten the dying off of the leaves and induce flowering?

But I only learned this too late.

Oh well. I like gardening but gardening does not seem to like me.

this year's sanggumay