Hi all,
I am actually a soap maker as job
I now soap nuts, soap berries, boiled yucca
roots, and shikakai bark powder, all of these clean your hair or hands very easily of oils. But they do not foam. Chickweed has same ability but a bit less. It will leave a clean feeling with you scrub your hands with it but not remove oils. I haven't tried soapwort (a native European plant) but shikakai powder works very well. Its such a effective and pleasant shampoo on itself alone (but does not foam).
The yucca
should be much easy to get and to grow, as well. The yucca, I have never tried.
Quinoa is another that has saponins. Boiled
flax seed (it gels) and corn starch also show some cleaning effect. I have tried all these things
Like Trish said, you must keep these powders in dry form, otherwise they will gain mold. Soap bars do not grow mold because they are alkaline and are a salt. They only grow mold if melted in
water. If you do make a water solution with these, then you must add a preservative. Best of it, is to use alcohol from distillation at 15% in final product because it will preserve against mold, just like it does in a wine or liquour.
Our projects:
in Portugal, sheltered terraces facing eastwards, high water table, uphill original forest of pines, oaks and chestnuts. 2000m2
in Iceland: converted flat lawn, compacted poor soil, cold, windy, humid climate, cold, short summer. 50m2