A question from a fellow grower:
I currently have 2 pretty much mature plants left. They are being grown outdoors in largish pots facing north in a wind protected position. Remember that I am in Australia & we are now at the end of Summer. I germinated the seeds in early November I think.
The plants are starting to change & I suspect that this is them growing the heads. Quite a lot of the non producing leaves are turning yellow & then dying & falling off. I have attached a couple of photos for you to have a look at. Is the leaves changing colour to yellow considered normal ?