I Live In Hammamet Tunisia. My Bougainvillea Is 3 Years Old. The Temperature At This Moment Is 39C. It Is In A Pot On My Terrace,

Question

protected by a low wall. It is very healthy but has no flowers. It is watered about every 2 weeks.

Answer 1

Since it is in a container and it is very hot, it needs to be watered more frequently. A moisture-stressed plant won't bloom. It also needs fertilizer or compost on a regular basis. A slow release fertilizer works well, as it supplies nutrients every time you water.

This article should help:

https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/bougainvillea-in-containers.htm