A recent post on the subject of liming has raised an important issue, especially for new lottie holders.
Gardeners tend to be a sociable and generous bunch of folk and will often be willing to share-that is by and large a good thing. BUT even at the risk of seeming a little rude do not accept plants eg brassicas and aliums until you know that they come from a disease free plot/garden.
There are ways of decling offers without giving offence and it should not be too difficult-and once you are happy that they are clean you can always go back and take them up later.
Stephan.