On Tue, 5 May 2009 22:32:49 +0100, Stewart Robert Hinsley
wrote:

In message , K
writes
ok - many thanks to you and Sacha for the overview.
I'll keep a lookout for the leaf-spot.
What is the normal life-cycle of the leaf from now on - what should
expect? Do the green leaves, if healthy, remain from now until next
spring.

They die back quite a bit in winter and then there's a big burst of
growth in spring.

They also often die back in the summer if they dry out.

I'd say it's moist enough here, but I notice they're almost all
starting to yellow a bit with a couple showing signs of leaf-spot.

I think I'm going to remove unsightly leaves come what may. There's
usually more primula than I need anyway and they evidently don't mind
being moved about when they start flowering.