We don't know the strains, so its hard to comment. I'm not sure on the lighting in SA, are they starting to get a full 12 hours of darkness? Lets say this - The plants look great, I'd love those in my garden, so everything is going well as far as health, but if you've had to wait til april to harvest before, then I'm sure you'll start seeing some hairs soon. As far as a dummy crop, I think they're just waiting to adjust to the lighting Remember, even after 12/12 starts it can take a few weeks before you see your first hairs!