@ossobuco,
Ok, I reread. If I can organize my various thoughts it may lead to some routes to look at.
I don't know about european (or other than u.s. schooling in it). Great land design people have shown up all over the earth with all sorts of their own imperatives, and who started that? Land design history is in itself interesting. This was my text, but, urgh, something like 1980. Still worth a read:
Design on the Land, Norman Newton
http://www.amazon.com/Design-Land-Development-Landscape-Architecture/dp/0674198700
In the U.S., I may be wrong, but still take it that Harvard is the place.
I went to a University of California extension place, night school, for four years, while working in the new field. Lots of staying up late.
You have to have a bachelors to get into the program (not for your wife a problem in any similar school). Or did, as I don't know about now. You finished and then you interned for two years and then you took big tests with tough time limits. Mine was national boards, three days then, with a short state test in that, followed by an interview. (I remember being ice cold before the interview, out in the waiting room.) I also remember my husband and I going to a place on Venice Beach and having champagne and calvados after we drove back (him driving) to our area. I could tell I passed. Usually you can't tell. I have a friend who took an architecture test nine times before passing - he was fairly high up in transportation stuff. Much of that I take as a language problemo, perhaps with a fear component. As I said earlier, I think, I have friends who are architectural historians, not architects, and they have had interesting work. One did arch tours; one got involved in architectural management. One male, one female.
What did this get you?
At least in Los Angeles, you could work for the city re planning or building and safety, or in garden design firms, or in world type site design firms, or your own immediately started design firm, general landarch firms, or your own design and construction firm (presuming you passed a contracting test). I have a friend who became a landscape architect and later became a occupational therapist, who now does garden design for disabled people.
There are also recessions, so oft times are tough.
That's enough for now. I wanted to emphasize that ability with math and science and sense of space is, to some extent, necessary, but that some less than terrific in that but clinging on to the word 'okay', may shine in other areas and find room in the field.
I'll pm you a link on the courses I took, manana - have no idea what is happening in your area.
So, this is a tangent re gender roles, but, eh, not completely.