lack of magnesium often is the cause of leaf yellowing. give it a dose of epsom salts [magnesium sulphate]. this should help green it up again.

And ensure it's not in a waterlogged site.

I have 2 in the ground and 1 in a 3 litre pot and all 3 have the same symptoms.yellowing of the leaves.im told that iron deffiency starts on the top leaves and I've noticed that the bottom leaves are a shade better than the top.?

They should be coming into growth very soon, if they're not already, I would give them a feed as soon as they start to grow, a liquid balanced feed is best, just a thought, have they been grown in a loam based compost, ie lohn innes no2? or are they in a peat based multi purpose? if they're in multi purpose, I would try to change as much as possible to j i no2, plus as others have said, make sure they're not waterlogged, Derek.

Hi Derek's.......possible site I have planted 2 in is slightly over damp......but saying that I have another pot in the greenhouse that I didn't get to put in the ground and that ones leaves have gone yellow.however I have noticed that the leaves on the bottom are slightly green and the rest are yellowish.this is why I'm thinking its an iron problem as plants with an iron deffiency have yellowish leaves at the top .its not one of the plants that hates lime and I prob have lots of it in my soil but as its a new variety ( I think ) maby it needs to be tested in a Limey soil ?