7yr old Mimosa/Acacia not flowering
I bought baby mimosa (a bout a foot high) 7 years ago, and Now in 45L pot and 8feet high. I have not pruned but every year, I have only 1 or 2 flower buds forms. My neighbour has 7 feet high in pot and full of flowers. Why mine does not? I have placed this pot in south/east facing walled garden.