I have the same problem with a sweetheart
Only my tree hasn't flushed in 2 1/2 years?
I cut 10 mangos off it the past 2 years so it would grow and it's not even 3 feet
and won't flush??? I would guess your two trees are developing roots now?
That sounds very suspicious. I have 10 of this variety (Sweet Tart) and they are among the more vigorous upright growers, as mentioned previously by others.
One year has seen 4-5 flushes and growth above 4 feet from a 3 gallon. Tall enough I harvested scions. Maybe there is a defect in the root system?
Is there certain rootstock that can cause this?
Maybe I should grow up some turpentine seedlings and graft onto it some of these scions.
It is a puny tree and sets ten fruit 2 years in a row? It is 15-20 feet from an oak. Maybe I should move it?
Sorry mugenia if I stole your post, I think someone answered your issue as far as temps?
If you want me to start a new post I will?