1 Answer

You may want to go to a garden shop to get suggestions from them. I could not find actual fig tree fertilizer for sale on the web.

The fig tree mostly requires potassium but does not need much nitrogen fertilizer, which tends to cause over-development of the vegetation and under-development of the fruit. In well-balanced soil one should use a fertilizer such as 4-8-12 (100g/150/an/m2) or 10-20-25 (50/70g/an/m²) which means (N-Nitrogen/P-Phosphorus/K-potassium such as 1-2-3 or 1-2-2.5). In poor soil, compost with pure potassium added in the form of potassium sulfate (20/25g/an/m2) or patentkali (30/35g/an/m2) is preferred. Fertilized must be added at the end of winter and be placed under the branches of the tree rather than around the foot of the tree.