[Cob] earthen plaster on drywall

[avjyoung at shaw.ca]

We are having to drywall our cob/strawbale house over the framed areas, rather than time-expensive lathe and plaster as our old house is falling apart and very close to uninhabitable. What, if any, earthen plaster can we put over the drywall to get the different surfaces looking more similar, and avoid using drywall mud and toxic paint?

Thoughts and comments very welcome!

Anna
cob-strawbale hybrid in Victoria, BC.