Indoor Gardening and Houseplants: Rehabitate an old ficus benjamina?, 1 by tapla

tapla wrote:
This is the soil I use for tropical trees. It's a mix of equal parts of a high-fired clay granule (Turface), crushed granite (grower grit), and screened pine bark (I now use fir bark in most woody plant soils. This soil will remain structurally sound for longer than what would be an appropriate interval between repots, and will hold water and nutrients well, at the same time as offering ample assurance that over-watering will not be an issue.

You should be able to find these ingredients easily if you want to make this soil, or you could substitute something for what you don't have. From the articles I sent, you can easily see how important air in the soil is to o/a plant vitality, and how this plant, in particular, appreciates a well-aerated soil.

Let me know if there is anything else I can help you with.

Al