The phrase "suitable environment" is correct and usable in written English. You can use it to refer to a place or atmosphere that is appropriate or desirable for a particular activity or purpose. For example, "The library provides a suitable environment for students to study.".
How can a school be a suitable environment for responsible learning if its students are subject to constant surveillance?
The embryo has all the "structures necessary for providing the new individual with a suitable environment and adequate nutrition".
The other constituents provide a suitable environment for the egg and sperm cells.
The sewage treatment plant provides a suitable environment, albeit of steel and concrete, for this natural biological process.
The follicular wall serves as a protective casing around the egg and also provides a suitable environment for egg development.
A shelter is not suitable environment for a person in a psychotic state but it can prove near impossible to persuade hospitals to take them.
The Israeli government's position is that, as a military training zone including live fire, the area is not a suitable environment for permanent residence.
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union