Questions

Where can I buy sweet white onion seed or transplants? The onions I want are the ones that are very mild and you can eat like an apple..eHOW.com gives growing instructions.

I grew calabrese from plants bought in my local garden centre. Very dissapointed as the heads were very small and very quickly went to seed. I cut the heads off to try to encourage side shoots but little was happening so I have pulled them up. Soil is quite heavy but well manured and plenty of water. What do you think was the problem?

I have just stated harvesting caulifowers but notice the larger ones have developed a purple tinge, the discolouration seems to be confined to the surface. some leaves also have a touch of purple, is this a disease?