It seems to have more to do with what plant you have planted. Each kind of plant has it's own set of needs. I can't say for sure about the Krok house or the Marlebone house as I don't have them, but the plants at my ice house grow just the same in the ice as the ones at my myth house do on the grass.
The house doesn't affect it, ALTHOUGH that would be cool! Life house adding maybe a 5% extra chance of a pixie per day(;
Yes. I would personally love environment differentiation plant needs. MooShu might need more magic? Dragonspyre would need more... Music. Celestia... I'm not sure. There aren't official ZF and AV houses,other than bundles.