In article , Alison alison.freeth@NoS
pAm.wideopenwindows.fsbusiness.co.uk writes
Sorry to post the same Q again but I didn't get any response - I *know* that
might be cos no-one knew nowt about it but just in case, I'm posting
again..... cos it's getting worse and I don't want to have to ditch all 36
plants. Here goes......

Morning Glory - Heavenly Blue

Planted these seeds in the GH. Came up rapidly and once roots showed at
bottom of seed tray, transplanted them into individual pots about a month
ago. All has been fine, rootball beginning to show at edges of pot, top
growth starting. But over the past week, as the top growth has opened into
leaves, the leaves are pale and yellow. Is this chlorosis? They are still
in the GH and have some shading.

Some thoughts based on what I would do, though I'm not an Ipomoea
specialist.

Possibly not enough light, but unlikely in the greenhouse

Bit cold for them? I'd not have sown till May, but I don't know where
you are.

Otherwise, not enough nitrogen. Give them a dose of tomato fertiliser -
it will have enough nitrogen to give them a boost, but he high potassium
will encourage flowers.

If you haven't got that handy, use an ordinary high nitrogen fertiliser
instead.

Repeat in a fortnight.

Once your leaves are going back green again, lay off the fertiliser -
too much leaf growth will mean you may not get as good a flower display
- a good flower display is often a desperate bid for survival from a
plant which feels its future is under threat ;-)
--
Kay Easton

Edward's earthworm page:
http://www.scarboro.demon.co.uk/edward/index.htm