Hi Saad, where are you located? I tried growing several fruit trees and other flowers/shrubs in pots here in inland Southern California without much luck. I believe the sun beating down on the pots during the summer cooked the roots. I had some luck with a mandarin orange tree but had to hide the pot behind my shed where it gets shade from about noon on. It's alive but isn't the healthiest. I have almost 30 fruit trees in the ground and aside from gopher and borer insect problems. they are all doing very well.

Really need to know where you are located. It could be that the trees are outgrowing the containers, and die due to lack of moisture. You have to water and fertilize often to keep the small amount of soil with moisture and nutrients.

It would be best to start with figs, since they are fairly easy to grow in containers. Plant less than 10 so you can manage those and see what problems arise. with 200 trees it can overwhelm anyone.

Thank you very much for reply.

I am located in north Africa. yes the weather is quite hot in summer the max temperature was 48 c/118 f.

however, the trees were put in shade and were watered regularly 2 to 3 times a week.

the soil i used was soft sand so it can drain excessive water. I did not use any Fungicide or

Insecticide. I did not give any fertilizer either.

Saad

I have figs in a 25 gallon container with a peat moss and pine bark mix. High temperatures in summer get to 95 to 97 degrees with high humidity (above 50%). I still have to water once a day, can sometimes get by with skipping a day.

I also add small amounts of fertilizer (1 teaspoon to 2 gallons of water) once a week.

Black pots can make the temperatures inside the pots burn the roots.

If you are stuck with black pots, you can paint them white which will reflect some of the heat and keep the roots a bit cooler. Also, keep them off the hot concrete. You can either raised them using some bricks or put them on dirt or something cooler. In extreme heat you will need to water almost every day, particularly if they are in pots. When we were pushing 95-100 degrees F, I was providing supplemental water everyday to my potted fruit trees and every other day to my in-ground trees (except my fig which was full of fruit - didn't want to ruin them.)

I absolutely agree with the need to water once a day. I think this is what killed your trees. It could have been from a single day or a brief period of days with insufficient moisture. I am in Northern New Mexico, where typical summer days are in the 80's and 90's F, sometimes with monsoonal moisture, and I still typically have to give all my potted plants (trees/shrubs included) daily watering. I can't imagine the lack of fertilizer doing in anything within only 4 to 6 months, but lack of sufficient moisture will for sure.

The smaller the pot, the more susceptible it is to drying out, and the more root-bound a plant is, the more difficult it is to keep it well watered. Mulch on the surface of the potting soil will help retain some moisture that is being lost to evaporation in the hot sun.