Feeding Specific Plants Organically?

This could go in any number of forums but, I guess it belongs here more than any.

I have a specific question that I'll get to but, I realized that it speaks to a general concept that I would like to understand more of. So, this first.

I understand that different plants require and even like different nutrients. I also understand that many of those nutrients can come from the decomposition of various organic materials, such as other plants.

I also understand that, aside from nutrients, there's a classification of Alkaline and Acidic plant requirements that can also come from various organic matter decomposing.

What I'm having trouble wrapping my head around is, outside of researching each specific plant, is there a "rule of thumb" that could help explain these requirements?

i.e. Flowering Plants like so and so, Citrus Plants need this and that.

I guess what I'm looking for is a flow chart or something similar. I'd like to expedite the process of caring for multiple species organically.

So, my question:
Is there a specific type of wood to use in a hugelkultur project that would provide better conditions for Roses?

I'm in Zone 9a and the summers can be ridiculously hot. Even the "colder" months of late have been exceptionally dry. (With the exception of Winter 2018.)

I worried that I've planted my roses too low in their bed. When the excessive rain came, they sat in water for a few days. So, next dormancy, I plan to raise them up and I thought filling in with old wood could provide multiple benefits.

Any thoughts?

I prefer decaying oak for buried wood beds.

Hi Josh,

There is a basic flow chart, and common plant preferencestypically goes by genus, but sometimes family, though it seems there are always exceptions to the rule. You'll just have to do your due diligence, and know the plants your dealing with, as thats the best approach to gardening. Beyond that you can search out charts for acid loving and alkaline loving plants, and even charts that list plants with there individual preferances regarding pH or nutrient usage. All this information is just a search engine away.

Happy studying!

Thanks, Tyler.
I'll keep Oak in mind when I'm looking for material.

Hi, R!
I appreciate the response. I'm all too aware that there's always an exception to the rule. I'll look for info based on Genus and Family.

I enjoy searching but, these days, I'm getting more advertisements than information once I venture into the niche plant topics.

This helps, though. Thanks!